System?

Fichte greatly admired the coherence of the quasi-mathematically structured “system” of Spinoza’s Ethics, even though he strenuously objected to Spinoza’s determinism. In his early work, he announces the objective of constructing a “system of freedom” that would be some sort of inverse of Spinoza’s. Rather than following Spinoza’s quasi-mathematical method of presentation, Fichte proceeded more informally. He was influenced by the early Kant interpreter K. L. Reinhold’s claim that philosophy should be derived from a single principle, and aimed to put this into practice with his notion of the universal “I” as the principle.

Schelling inherited the rhetorical emphasis on a system from Fichte (e.g., one of the works of his early period was entitled Presentation of My Own System), but in general was a less rigorous thinker.

Hegel also inherited the rhetorical emphasis on a system, but aimed to be more rigorous than Fichte. At the same time he expands upon Kant’s criticism of the quasi-mathematical presentation in Spinoza, and explicitly rejects Reinhold’s view that philosophy should be derived from a single principle. So, there is a serious question what “system” really means for Hegel.

It is clear from his explicit remarks that he put an extraordinarily high value on the coherence of philosophical thought. The advance of studies of Hegel, especially since the later 20th century, has confirmed that he largely succeeded in putting this into practice. Both his overall thought and his detailed arguments are increasingly recognized as highly coherent.

The historic negative reception of Hegel has consisted largely in caricatures of his systematic ambitions. I call them caricatures because they rely on attributing to Hegel notions of “system” that were not his.

Hegel’s rhetorical emphasis on system, I want to suggest, is a red herring. What really matters in his thought is not “system” but coherence.

The notion of systems originates in mathematics, and there it has unambiguous meaning. Systems in mathematics do have great utility, because you can’t mathematically prove anything independent of a particular presentation, but this makes mathematical systems intrinsically presentation-dependent. That is to say, the particular terms and order with which the content is developed and presented are essential to making it a system for the same reasons that they are essential to proof. Mathematicians recognize that there may be multiple equivalent formulations, presentations, and systematizations of the “same” content.

I don’t find any of the attempts to present non-mathematical “systems” very helpful or convincing as such. (The common talk about real-world “systems” in engineering and science — which does also have utility — I take to be grounded in a kind of transference from the mathematical concept of a system. It is really the mathematics that describes the things or behavior of interest that may be expressible as a system.)

On the other hand, I want to say that the notion of coherence is more universal than that of a system or systems — systems are presentation-dependent, and coherence is not. The rhetorical stance of the German idealists seems to me to have assumed that the only way to achieve coherence is through the uniform presentation of a system. Certainly it is the most straightforward way, but that does not mean it is the only way.

Coherence in Hegel, I want to suggest, is “development-dependent” but not presentation-dependent. Robert Pippin points out that none of Hegel’s works is structured in a deductive order — rather, they all follow a “developmental” order that more resembles the telling of a story or an account of a history.

Hegel’s notorious idiosyncratic and paradoxical straining of language to talk about “identities” that preserve distinctions is helpfully explainable in terms of the notion of narrative identity developed by Paul Ricoeur. Aristotle’s articulation of things “said in many ways” and his more subtle development of “substance” in the Metaphysics are relevant background for this. (See Aristotelian Identity; Univocity.)

Ricoeur is the main developer to date of a synthesis of Kant and Aristotle independent of Hegel’s. Mediation is as central to his thought as it is to Hegel’s, and he explicitly recognized the convergence. However, he strongly rejected the “system” aspect of Hegel, and his development also doesn’t explicitly include anything resembling the Hegelian absolute, even in the deflationary form in which I think Hegel really meant it.

Logic and Metaphysics

In Emancipatory Logic? I began a walk-through of Robert Pippin’s important Hegel’s Realm of Shadows. This post borrows its title from his second chapter, though it only addresses the first part of it.

According to Pippin, Hegel’s Science of Logic is intended to exhibit the “spontaneous” or “self-generating” actualization of intelligibility. This takes places through the higher-order universals that Kant following Aristotle called “categories”.

Hegel’s “logic” provides his alternative to Kant’s notoriously long and difficult argument for the possibility of a priori knowledge that is not merely analytic, and to Kant’s derivation of the categories. As an exercise in what Aristotle called first philosophy, it is not supposed to depend on anything else.

By his own lights Hegel is extremely concerned with concreteness. He is therefore very conscious that his “logic as first philosophy” only addresses possible actualizations of intelligibility, and doesn’t derive anything real. We might think that the actualization of intelligibility would be a realm of light, but here the concern is with the emergence of light, hence his curious metaphor that “logic” is a realm of shadows.

“Hegel follows Kant’s innovation in his response to the empiricist challenge…. The basic question is, How could there possibly be objectively valid concepts, true of all objects, but not derived from experience? Where could they come from? In Hegel’s terms, this amounts to the question, How do concepts that are the products of thought alone ‘give themselves’ content, where by content we mean something extraconceptual?” (pp. 39-40).

Pippin says that Hegel will want “to determine objects in their thinkability, where that means their suitability not for a finite, subjective power, but for thought as such, that is, objects in their intelligibility, in their being at all intelligibly what they are. Their being what they are is their concept, or their ‘being their concept’, for Hegel. The concepts did not come from anywhere, any more than the thinking power comes from anywhere” (p. 40). Hegel aims for a “logic of the knowable as such” (p. 41).

“[Kant’s] critique concerns the modern tradition stemming from Descartes, embodied in Arnauld’s and Nicole’s Port Royal Logic in 1662, as well as the Leibnizian/Wolffian metaphysical tradition. The former held that clarity about the relations between ideas could lead the mind closer to the bearers of philosophical truth, clear and distinct ideas, known passively by the ‘light of reason’. For the latter, the laws of thought simply are the ‘laws of truth’ (to use Frege’s phrase), or a general logic is just thereby a logic of objects, because all philosophical truth is what Kant would call ‘analytic’, arrived at by logical analysis alone” (pp. 41-42).

Pippin emphasizes that Kant and Hegel both reject the early modern (originally Thomistic) idea of passive illumination by a “natural light” of reason. In the original Thomistic context, the idea of a natural light of reason played what I think was a very positive role as a counter-weight to sectarian tendencies in religion, but in the early modern context it led to a new kind of dogmatism.

“With general logic as it was understood in the Port Royal and the Wolffian traditions, [Hegel] agrees that logical reasoning, understood in that way, does not provide knowledge of objects. He especially agrees with Kant that reason and understanding are activities, not passively ‘illuminated’. As ‘that great foe of immediacy’, in Sellars’ phrase, he does not mention or rely on such receptive or noetic intuition. As such a great foe, Hegel is opposed to any notion of self-standing, atomic conceptual content. As he wants so famously to show in a dialectical logic, determinateness is a function of determination, always an identification ‘through an other’, his formulation for discursivity” (p. 42).

For Hegel, there is no determinateness without a prior activity of determination. That activity is a discursive articulation of otherness in its concreteness by means of language.

Hegel’s Science of Logic is divided into what he calls an “objective” logic, consisting in a “logic of being” and a “logic of essence”, and a “subjective” logic, consisting entirely in a “logic of the concept”.

“The logic of being seems clearly to correspond to the Kantian categories of quality and quantity, what Kant called the mathematical and constitutive categories, and the logic of essence certainly seems to correspond to the categories of relation and modality, or the dynamic and regulative categories. The logic of the Concept makes use of the same syllogistic central to Kant’s conception of the role of such an inferential structure in the activity of reason” (p. 43).

Incidentally, I find it intriguing and highly plausible that Hegelian essence would express relation and modality. As much of an improvement as this is over the early modern notion of essence as a putatively self-contained content, it still does not yet address the fluidity of what would have been essence in development over time.

Pippin notes that in an 1812 letter, Hegel also said the objective logic roughly corresponds to the “ontology” he saw articulated in Aristotle’s logical works. I would add that Hegel’s “logic of the concept” moves beyond the “objective” logic in somewhat the same way that the discussion of “substance” in Aristotle’s Metaphysics moves beyond that in the Categories.

Pippin says “there is no question that Hegel both wholeheartedly agreed with Kant’s critique of substantive metaphysics, and realized that that critique applied only to modern metaphysics and left several possibilities open” (p. 44). He quotes Hegel saying “What Kant generally has in mind here is the state of metaphysics of his time…; he neither paid attention to, nor examined, the genuinely speculative ideas of older philosophers on the concept of spirit” (ibid).

He begins to clarify what Hegel more specifically means by logic.

“[F]or both Kant and Hegel, the unit of significance for any logic is not the proposition or any static formal structure but acts of reasoning and assertion” (ibid).

“Hegel’s logic does not primarily concern relations among, operations upon, propositions, and is instead oriented from a logic of terms. So we don’t see a syntax specified by axioms, a proof theory, and a semantics” (ibid).

In mainstream 20th century logic, the older term logic was regarded as a mere historical relic. But since the late 20th century, type theory has provided a formulation of term logic in higher-order mathematics that subsumes not only first-order but also higher-order predicate logic, so even in strictly mathematical terms, term logic is once again highly relevant.

“But as becomes clearer in the logic of the Concept, conceptual content is not provided by analysis of atomistically conceived concepts. Concepts are understood, as they were in Kant, as ‘predicates of possible judgments’, and the roles they play in possible judgments in various contexts, involving other concepts, and the roles they can and cannot play in such judgments (including the inferential relations among the judgments) are necessary to specify such concepts. This is why Hegel metaphorically speaks of concepts as alive, in movement, and why the logic’s ‘motion’ is the key to the specification of any concept…. Concepts are rules for judgmental unification, and judgmental unifications are always apperceptive” (p. 45).

“So the structure of concepts in use is the structure of the apperceptive ‘I’ (ibid; see also Ideas Are Not Inert).

“The concept of the Concept, the apperceptive understanding of the implications of this apperceptive structure, is what Hegel calls ‘the Absolute'” (ibid).

He compares Hegel’s view of concepts to that of the contemporary philosopher John McDowell in Mind and World.

“[I]n McDowell’s view we can certainly distinguish thinking from what is thought (the world is not a thought-thing; thinking is a discursive activity; the world is not a discursive activity) and still insist that the world ‘is made up of the sort of things one can think. (That discursive activity is, in its unity, the unity of anything that can be known would be expressed on the ‘object side’ by claiming that a determinate object is articulable as a single unity.) Or, for example, the profound-sounding (even Heideggerian) claim that there is no ontological gap between thought and world just comes down to the fact that ‘one can think, for instance, that spring has begun, and that very same thing, that spring has begun, can be the case’. What I think when I know (think truly) that something is the case is simply what is the case. It is thus a truism of sorts that, with the issue posed in a Kantian way, ‘the forms of thought are the forms of things…. The distinction between ‘conditions on the possibility of knowledge of things’ and ‘conditions on the possibility of things themselves’, which some use to characterize Kantian idealism, should be rejected ‘on the ground that the relevant conditions are inseparably both conditions on the thought and conditions on objects, not primarily either the one or the other'” (p. 47).

Frege said a fact is a true thought. The early Wittgenstein identified the world with what is the case. Aristotle said there is no difference between thought in the strong sense (nous or “intellect”) and that of which it thinks. Pippin quotes Hegel’s implicit invocation of Aristotle on this point:

“The older metaphysics had in this respect a higher concept of thinking than now passes for accepted opinion. For it presupposed as its principle that only what is known of things and in things by thought is really true [wahrhaft Wahre] in them, that is, what is known in them not in their immediacy but as first elevated to the form of thinking, as things of thought. This metaphysics held that thinking and the determination of thinking are not something alien to the subject matters, but rather are their essence, or that the things and the thinking of them agree in and for themselves (also our language expresses a kinship between them); that thinking in its immanent determinations, and the true nature of things, are one and the same content” (p. 48; see also Form and Things).

Pippin points out that Hegel does not simply identify facts with propositions. Rather, in the spirit of Kant’s unities of apperception, he is concerned with “thought’s agreeing with itself” (p. 51). “The force of a judgment is judgment’s own force; it is not a natural force or the result of the accumulation of empirical data” (p. 52). In a footnote Pippin adds that “‘I did it because I thought I ought to’ could be appealed to to make the same point” (ibid).

“A wolf is not simply, in itself, what it is to be a wolf but to some degree or other a better or worse exemplification of such a concept ‘for itself’. The object is not just ‘as it is’; it is ‘for’ (here, in the sense of ‘for the sake of’) its concept and hereby itself…. This is all in keeping with Hegel’s general tendency to gloss his use of for-itself with Aristotle’s notion of an actualized potential” (pp. 54-55).

“To say that an object is ‘for its form’ is just to say that there is an intelligible dynamic in its development. (As in Aristotle, the particular kind of unity by which any thing or process or activity is what it distinctively is is the unity by virtue of which it is intelligible.)…. This intelligible dynamic is its concept and is not something that exists separate from or supervening on some physical attributes and efficient causation. It just is the intelligible way a development develops; there is nothing ‘over and above’ the development” (p. 55).

Pippin quotes Hegel’s Encyclopedia logic where Hegel specifically recalls Aristotle’s criticism of Plato for neglecting the actuality of forms.

“Self” and “other” are inseparably related in the Logic, as they are in the discussion of self-consciousness in the Phenomenology. In the Logic, “‘for itself’ and ‘for an other’ will be reciprocally dependent notions” (p. 56).

For Hegel, a being “is what it is and not anything else (it is ‘in itself’), but only by virtue of the properties that can intelligibly distinguish it from its contraries (can determine what it is ‘for itself’)…. Accordingly, everything… turns on the sweeping claim that ‘truth [the truth of being, the determination of what things truly are] is self-consciousness [the forms of self-conscious judgment]…. This does not claim it exists only as conceived, or that the conceiving on which its determinacy depends should be understood as subjective mental episodes” (pp. 56-57).

“Thought can determine its objects, but not by appeal to the light of reason, not ‘immediately’…. Much more will have to be said about this, but it will be very important to Hegel that to consider things in their intelligibility is also and at the same time to consider them in terms of the only beings for whom beings can be intelligible, rational beings” (p. 57).

Pippin says that Hegel rejects Kant’s “distinction between things considered in their possible intelligibility and things considered simply as they are in themselves” (p. 58). He again notes that Hegel is neither simply identifying things with thoughts nor identifying thought’s self-determination with anything like the Absolute’s knowledge of itself.

“[T]he initial, simple point at issue now is that anything’s being at all would be mere indeterminate and indistinguishable being were it not conceptually determinate, articulable — in the simplest sense, an instance of a concept” (p. 59).

“And this raises Hegel’s main question in the Logic: how to account for conceptual content…. The answer to that question will depend on two very difficult elements in Hegel’s project: … that the form of the concept is the form of the self, and that, accordingly, truth is self-consciousness; and the claim that the way to understand this content is to understand these concepts as ‘self-negating’, but in a way that promises a positive result” (ibid).

Next in this series: Hegel’s Union of Kant and Aristotle

Form and Things

I use the word “thing” in a very general sense for anything at all — real, ideal, or imaginary; abstract or concrete; including properties, actions, processes, and adverbial characteristics.

Kant controversially wanted to assume that things of all sorts have definite ways that they objectively are “in themselves”, i.e., completely independent of our experience and knowledge of them. But for him, there is inevitably a gap between our knowledge and reality. Every attempt to ignore or overleap that gap he called dogmatism. This was his way of practicing what I have called epistemic modesty, or the ethical virtue of avoiding unfounded knowledge claims. When we don’t know, we go ahead and act based on the best beliefs we have, while in principle remaining open to the possibility that our belief may require revision.

Hegel and others have worried that there is something wrong with Kant’s way of expressing the situation — with this gap between knowledge and reality that is inevitable and even virtuous for Kant. Some of Kant’s remarks make it sound as if reality as it really is and our experience could be two entirely nonoverlapping realms. If this were true, Kant’s position could be seen as leading to skepticism, or the conclusion that genuine knowledge of reality is impossible.

Kant himself would have resisted this conclusion with all his might. He does believe we have genuine knowledge; he just wants us to be very careful about what we claim to know. For Kant, genuine knowledge does not require access to things in themselves; rather, it keeps within the bounds of possible experience. It minimally designates an objectivity toward experience, consisting in the absence of dogmatism and an unceasing effort toward unity of apperception.

Hegel agrees with Kant in opposing dogmatism and emphasizing the effort toward unity of apperception. His strongest opposition to Kant’s talk of things in themselves assumes that “in themselves” means “in isolation”, as it would under the Wolffian view (rejected by both Kant and Hegel) that all knowledge is analytical. Hegel emphasizes that unities of apperception are not just individual but also shared. At the same time, he revives the Aristotelian idea that thoughts should be distinguished as forms or meanings shareable in principle with any rational being, and that as such, they are whatever they are independent of subjective presentation. This makes it quite reasonable for Aristotle and Hegel to claim that the form or meaning that is properly being thought is the very same as the form or meaning that is being thought about.

An analogous identity certainly does not apply to experience or consciousness. To assert that would be dogmatism in Kant’s sense. The thought that Aristotle and Hegel identify with form or meaning is not a kind of consciousness. The most fundamental characteristic of consciousness for Hegel is the separation of subject and object, whereas in thought proper there is no such separation, only a succession of forms. In Hegel, the gap between consciousness and its objects takes the place of the gap between knowledge and reality in Kant, and similarly commends to us a practice of epistemic modesty in life.

Another dimension of epistemic modesty in Aristotle and Hegel has to do with the non-univocal character of form in Aristotle, and with Hegel’s repeated warnings about the “falsity” of all fixed representations. Form is said in several ways in Aristotle, e.g., sensible form, mathematical form, linguistic meaning, and the life or soul of a living being. Of these the first two are univocal, but the last two are not.

From the point of view of form, we take a deflationary view of “things”. Things — like the thing in itself in Kant — are in a strict sense indexes delimiting our ignorance rather than univocal “objects” of knowledge.

The fact that our ignorance is delimited means it is not total. We do have knowledge, but insofar as either proper knowledge or Hegelian spirit has “objects”, those objects lack univocal identity.

Emancipatory Logic?

When it comes to Hegel’s “logic” the first question is, what does it really aim at? What is it even trying to do? Robert Pippin’s Hegel’s Realm of Shadows (2019) is the best attempt to answer this I have found so far.

“[Hegel] seems to promise something quite extraordinary and, no doubt to contemporary ears, something quite implausible, a treatment of ‘logic’ in some way in service of an emancipatory ideal — an emancipatory logic, of all things” (p. 24).

To briefly anticipate, it will be emancipatory in addressing the Aristotelian actualization of Kantian freedom.

“[T]he most important element in Hegel’s fulfilling such an ambition… is a ‘science of pure thinking’. What any thinking does is to render something intelligible, a task that, as we shall see, has many different dimensions and is inseparable from the giving of reasons. But, as we have also noted, to say what something is, or to explain why something happened, or to understand the point or purpose of anything, is not just to present a picture or grasp a content. It is to judge, something always open to challenge and interrogation” (p. 20).

What Hegel calls pure thinking is concerned with and exhibits the general shape of the space of reasons.

“Eventually… we would need a fully reflective account of the ‘ground of giving grounds’…. In the practical domain, in Kant and the post-Kantians, I am free when I am acting on reasons about what ought to be done. This is a form of self-consciousness that, according to Kant, is paradigmatically embodied when I act wholly on reasons, and not just prudently or instrumentally, as when I act for the sake of ends I have not rationally determined I ought to have” (p. 21).

Put another way, all our reasons ought to trace back to the highest good. When our reasons stop at some partial good, we are not yet free.

“[I]n just the same sense as Hegel will want to treat concept and intuition in experience as distinct but inseparable, he will want to say that so-called ‘material’ issues… are inseparable from forms of self-understanding, as inseparable as such forms are from their material embodiment” (p. 22).

Hegel’s strong emphasis on actuality and actualization leads him to see something like Aristotelian hylomorphism (inseparability of form and matter) in places where Kant tended to see dualities. For Hegel as for Aristotle, our true intent is expressed by what we actually did.

Pippin quotes the Phenomenology Preface’s statement that the task of modernity “consists in actualizing and spiritually animating the universal by means of the sublation of fixed and determinate thoughts” (p. 24).

“Hegel’s unease with [the dominance of fixed representations] is what begat those familiar later claims about the ‘ideological’ nature of bourgeois philosophy, the one-dimensionality of modern societies, the dominance of ‘identity thinking’, the crisis of the European sciences, the colonization of the life-world, and so forth. And while all such critiques can be traced back to Hegel, he does not make the case for such limitations by contrast with a positive or utopian theory, as is the case in many of these examples” (p. 25).

Hegel aims at a purely immanent development of self-critical understanding, in which forms of spirit all on their own eventually exhibit their own incompleteness and one-sidedness, rather than being claimed to fall short of some external ideal.

“Stated in the simplest possible terms, Hegel’s diagnosis of the fix we have gotten ourselves into consists in the claim that we have not properly understood how to understand ourselves and the social and natural world in which we dwell. This is not, though, because we have simply been regularly mistaken, the victim of false philosophies, wrong ideas. It is due to the inevitable partiality and one-sidedness of various ruling concepts (let us say, for shorthand, norms for explanation and justification, the normative structures of the ‘space of reasons’)” (p. 26).

The solution is not a matter of simply substituting more correct first-order beliefs. Of far greater import are our higher-order ways of thinking, judging, and assessing.

“Moreover, the problem is not the contents of our beliefs but the way we have come to collectively regulate what is believable…. Our norms for authoritative explanations and for how we justify ourselves to each other are imbricated in the everyday fabric of a form of life” (p. 28).

“Thus, it would not be an exaggeration to say that Hegel’s basic claim… is that we have not properly understood the ‘grammar’ of spirit (the logic of self-relation, both individual and collective, that makes up spirit), and this is connected with our failure to understand the grammar of possible renderings-intelligible or account-givings in general…. And it would also not be an exaggeration to say that, for Hegel, once we do understand it, we (at least we philosophers) will be freed from the illusion that some particular form of account-giving (like modern Verstand [understanding based on simple fixed predications]) could be taken to be ‘absolute’; the proper relativization (historically and systematically) of different accounts of account-giving will have been made. Or, stated in its most surprising form: Hegelian philosophy has no distinct doctrine of its own; its content is the right understanding of past attempts at account-giving in their limitations and interconnection” (p. 30).

This notion of a “grammar” of spirit is quite fascinating. “Self-relation” is at the heart of Hegel’s often misunderstood talk about the “true infinite”. Hegel wants to say that the ordinary grammar of subject and predicate as fixed terms is not a very good form for expressing thought, because it lacks “life”. Pure thought for Hegel involves moving beyond all fixed terms. Self-relation involves no substantive “self”, only the purely relational character of an always re-emerging unity of apperception. Freedom for Hegel has a kind of grounding in the “true infinite”, but this has nothing to do with an infinite power. What makes self-relatedness “infinite” is its relations-first character, which does not depend on any pre-given fixing of ground-level terms. For Hegel, higher-order form is more primary than first-order form. First-order terms are degenerate cases, not foundational instances.

“Apperceptive spontaneity is not understood as a subjective mental activity, opposed to or addressed to or imposed on what there is…. If we understand this properly, we understand apperceptive spontaneity ‘in its actuality’, as having ‘given itself’ its own actuality, the actuality of the intelligibles, what there is” (p. 35).

What is free in us is not a separate faculty of decision-making, but the open-endedness of the basis of our understanding. For Hegel, there is no gap between understanding and action. What we really understood or didn’t understand is made publicly interpretable by our action. Meanwhile, what there is is inseparable from the intelligibility of that “what”.

Pippin notes that the original context for talk about “spontaneity” in Kant was the latter’s insistence against the tradition that thought is entirely active in character. Thought for Kant includes no moment of passive receptivity, and therefore generates and is responsible for all of its own content. Hegel adopts this perspective.

“Put in terms of the history of philosophy, what all of this will amount to is an attempt by Hegel at a highly unusual synthesis of the Kantian revolution in philosophy, especially the anti-empiricist, self-grounding character of reason (aka ‘the Concept’), and the most important Kantian innovation, the spontaneity of thinking, together with essential elements of Aristotle’s understanding of metaphysics, especially the Aristotelian notions of energeia, which Hegel translates as Wirklichkeit, actuality, the proper object of first philosophy, and, as we have seen, the core of the classical view that ‘nous’ [intellect] rules the world, all in contrast to the rationalist metaphysics of nonsensible objects accessible to pure reason alone. Hegel is no metaphysician in this rationalist sense, but he is most certainly a metaphysician in the Aristotelian sense. That is, at any rate, the thesis of the following book” (ibid).

It is refreshing to see metaphysics treated as something other than an ahistorical lump extending from Parmenides to the present. Later common usage has diverged so far from the meaning of Aristotelian first philosophy that I prefer not to call the latter “metaphysics” at all, but that term loses its objectionable connotations insofar as the reference is tied to something specifically Aristotelian.

I think recognizing that Hegel fundamentally aimed to combine Kantian and Aristotelian insights in a principled way is essential for grasping what he was really about. But to even have the perspective that such an aim makes sense requires work on the interpretation of both Aristotle and Kant; one would never come up with it based on textbook stereotypes.

More than any other commentator, Pippin has developed both the Kantian and the Aristotelian dimensions of Hegel. Later in the current book, he will have more to say specifically about Hegel’s post-Kantian recovery of Aristotelian teleology.

(He says in passing that the earliest precedents for Kant’s view that thought and reason are never purely passive are from the late 16th century. That is not quite right. Alain de Libera has documented that the foremost medieval commentator on Aristotle, Averroes, explicitly interpreted Aristotle as saying that the so-called potential intellect has an “activity” of its own and is not purely passive. In fact, even sense perception is not just passive in Aristotle. Aristotle’s remarks about the synthesizing role of the “common” sense and “inner” sense are unfortunately extremely sketchy, but it seems beyond doubt that they do have a synthesizing role.)

Next in this series: Logic and Metaphysics

Teleology After Kant

Kant is responsible for recovering something like the modesty stemming from deep seriousness with which Plato and Aristotle approached claims of knowledge, though I don’t think he realized just how far they were from the dogmatism that broadly characterizes the intervening tradition. Kant indeed often speaks as if all previous philosophy had a dogmatic cast. I don’t think the tradition between the times of Aristotle and Kant was the uniform sea of dogmatic positions that Kant makes it out to be, either, but I agree that a dogmatic cast was dominant.

Kant also goes further than Aristotle or even Plato in positively asserting a principled basis for limiting claims to knowledge. Plato emphasizes sharp distinctions between appearance and reality. Aristotle is more inclined to emphasize that we do after all indirectly encounter something real in and through appearances, but he is in agreement with Plato (and Kant) that there is no magical overleaping of the fact that what we experience directly are only appearances.

For all three of them, knowledge in a strong sense could only be a product of the indirect work of reason reflecting on experience. Aristotle further emphasizes the variability of things in the world, and the large role of ambiguity in experience. Kant on the other hand is still beholden to the early modern assumption that knowledge ought to be subject to a completely univocal account. But his notions of synthesis are a great contribution to the understanding of how experience works — how “immediate” experience is a result of pre-conscious processes of constitution. In a nutshell, this is the additional principled basis for limiting knowledge claims that we owe to Kant.

With extremely broad brush, it could be said that Hegel takes up the Kantian emphasis that experience is a result of processes of synthesis but, unlike Kant, he also wants to emphasize that synthesis is not a self-contained activity of each individual. At the same time, he takes the more Aristotelian perspective that we really do indirectly encounter reality in and through appearances. For Hegel, to deny this would be to deny the possibility of knowledge altogether.

Hegel sees synthesis taking place at the level of what he calls spirit — i.e., the level of the universal community of rational beings across space and time, of shareable thought contents, and of broadly (but not entirely) shared values. But he also recognizes Aristotelian variability and ambiguity. At this extremely high level of generality, Hegel is a Kantian Aristotelian or an Aristotelian Kantian. Spirit for Hegel transcends nature, without being opposed to it.

In the Preface to the Phenomenology, Hegel glosses reason as purposeful activity, while sympathetically referring to Aristotle’s view of nature as purposeful activity. In the Science of Logic, he carefully distinguishes the internal kind of teleology Aristotle attributed to nature from the external kind that refers particular events to the will of God. He distinguishes three kinds of determination. Mechanism and “spiritual mechanism” determine things from outside, in ways that are indifferent to their specific character or content. An intermediate form he calls “chemism” determines things from outside in ways that do involve their specific character or content. These are both contrasted to teleology, which according to Hegel is the internal determination of things by what I at least would call their nature or essence.

For Hegel, mechanism and chemism together represent means by which ends are realized. He explicitly identifies these with efficient causes operating in ways ultimately subordinate to final causes. I was unaware of this when I previously glossed the Aristotelian efficient cause as fundamentally a means by which an end is realized, but it is nice to know it has Hegel’s concurrence.

For Hegel, the external determination of things is subordinate to their internal or “self”-determination. Self-determination meanwhile is anything but the result of arbitrary will; it develops out of the concrete detail of the “self-relatedness” in which the very forms of things consist. He treats this as an elaboration of the Phenomenology Preface’s assertion that “substance is also subject”.

The very essence or substance of things is able to act in subject-like ways, because form for Hegel is explainable in terms of self-relatedness. Meanwhile, Science of Logic translator George di Giovanni notes that Hegel’s selbst or “self” has no interpretation in German as a noun. As I would put it, “self” is purely adverbial and relational, and therefore is constituted in what Hegel in the Phenomenology Preface calls otherness. So, for Hegel the primacy of internal determination is perfectly compatible with the logical primacy of otherness. “Self” refers to a constitution in otherness, rather than being opposed to it. From the start, Hegelian otherness is conceived as beyond any naive opposition between a substantive self and what is other than it.

Thus Hegel can be seen as more thoroughly vindicating the content of Aristotelian internal teleology from a Kantian point of view. Kant himself made an important start at this in the Critique of Judgment, but qualified the legitimate application of internal teleology to nature as ultimately only having a heuristic value useful to our understanding, that would not be literally applicable to nature as it is in itself. Hegel in the Science of Logic carefully and at length develops objectivity out of something like what I would call reasonable interpretation, and on this basis recovers a valid notion of internal teleology as something real. This notion of objectivity as something constituted is a further development of another Kantian theme. (See also Aristotle on Explanation; Nature, Ends, Normativity.)

Substance and Subject

This is part 2 of my walk-through of the Preface to Hegel’s Phenomenology of Spirit. We’ve reached the point where he says “In my view, which must be justified by the exposition of the system itself, everything hangs on grasping and expressing the true not just as substance but just as much as subject” (Pinkard trans., p. 12).

I’ve previously written two posts (Substance Also Subject; Subject and Substance, Again) that try to bring this aspect of Hegel as close as possible to the deeper sense that Aristotle gives to “substance” in the Metaphysics. I still think this fits well with Hegel’s larger perspective, but here I want to deal with the text as it stands.

Just two sentences after the one quoted above, there is an unmistakable reference to Spinoza’s controversial view that God is the only substance there is. Spinoza defines substance as “what is in itself and is conceived through itself, i.e., that whose concept does not require the concept of another thing, from which it must be formed” (Ethics book 1 definition 3; Collected Works, Curley trans., vol. 1 p. 408). The sentences in which Hegel literally speaks of substance in the Preface appear to be consistent with this. In general, Hegel most often speaks of “substance” as something whose main attributes are self-containedness and immediate identity with itself. This is very far indeed from the Metaphysics-based notion of substance I have been concerned to develop here. But as we will see, Hegel makes up for this in other ways.

A “subject” for Hegel is always a conscious or self-conscious being. But consciousness for Hegel always comes paired with an object. Self-consciousness eventually overcomes the duality of consciousness and object, but it is constituted in irreducible relation with other rational beings.

So when Hegel says “substance is also subject”, it is a paradoxical expression saying that what is self-contained “also” has irreducible relations to objects or other beings. Language is here strained to the breaking point. Perhaps he wants to imply that the very thing that the Schellingians claimed was entirely self-contained is in reality essentially embedded in otherness.

Overall, Hegel stresses irreducible relations far more than self-containedness. In the opening quote, he just told us that in his discourse, we should not expect to find a “substance” that is only substance and nothing more. In Hegel, even the absolute is never “just” absolute. Everything for Hegel is more than it “just” is.

When he speaks of ethical substance or spiritual substance, what he seems to really want to convey is just that these have an aspect of self-containedness or simple immediacy, not that they are strictly reducible to it.

“The true is not an original unity as such, or, not an immediate unity as such. It is the coming-to-be of itself, the circle that presupposes its end as its goal and has its end for its beginning, and which is actual only through this accomplishment and its end” (pp. 12-13).

The circular relation here is importantly different from that by which Plotinus strictly identifies the end of all things with the origin of all things (for him, the One is both of these). In Hegel, the circle explicitly involves actualization of the end via coming-to-be, which escapes strict identity, whereas in Plotinus the circle is supposed to be eternal and to figuratively represent a simple identity. Directly contrary to Hegel, Plotinus would tell us that the true is both an original unity and an immediate unity.

Hegel expands his previous statement as follows:

“However much the form is said to be the same as the essence, still it is for that very reason a bald misunderstanding to suppose that cognition can be content with the in-itself, or, the essence, but can do without the form — that the absolute principle, or absolute intuition, can make do without working out the former or without the development of the latter. Precisely because the form is as essential to the essence as the essence is to itself, the essence must not be grasped as mere essence, which is to say, as immediate substance or as the pure self-intuition of the divine. Rather, it must likewise be grasped as form in the entire richness of the developed form, and only thereby is it grasped and expressed as the actual.”

“The true is the whole. However, the whole is only the essence completing itself through its own development. This much can be said of the absolute: It is essentially a result, and only at the end is it what it is in truth. Its nature consists just in this: to be actual, to be subject, or, to be the becoming-of-itself. As contradictory as it might seem, namely, that the absolute is to be comprehended essentially as a result, even a little reflection will put this mere semblance of contradiction in its rightful place. The beginning, the principle, or, the absolute as it is at first, or, as it is immediately expressed, is only the universal. But just as my saying ‘all animals’ can hardly count as an expression of zoology, it is likewise obvious that the words, ‘absolute’, ‘divine’, ‘eternal’, and so on, do not express what is contained in them; — and it is only such words which in fact express intuition as the immediate. Whatever is more than such a word, even the mere transition to a proposition, is a becoming-other which must be redeemed, or, it is a mediation” (p. 13).

“Hence, reason is misunderstood if reflection is excluded from the truth and is not taken to be a positive moment of the absolute. Reflection is what makes truth into the result, but it is likewise what sublates the opposition between the result and its coming-to-be” (p. 14).

As with “substance”, Hegel gives essence a much more restrictive meaning than I have been developing here. On the other hand, he has a lively Aristotelian notion of form that is quite unusual among modern writers.

To pay attention to mediation is to “be at home in otherness”. Here I think we are much closer to Aristotle again, perhaps in spite of what I find to be the awkward earlier words about substance and subject. Hegel seems to confirm this by explicitly comparing what he has just said to the larger scheme of Aristotelian teleology, just as I had hoped before (see Aristotle on Explanation; Nature, Ends, Normativity; Hegel’s Preface). Now that the ground is clear, I’ll apply this to the earlier point about Kant and Aristotle in a future post.

“What has just been said can also be expressed by saying that reason is purposive doing. Both the exaltation of a nature supposedly above and beyond thinking, and especially the banishment of external purposiveness have brought the form of purpose completely into disrepute. Yet, in the sense in which Aristotle also determines nature as purposive doing, purpose is the immediate, the motionless, which is self-moving, or, is subject…. For that reason, the result is the same as the beginning because the beginning is purpose — that is, the actual is the same as its concept only because the immediate, as purpose, has the self, or, pure actuality, within itself. The purpose which has been worked out, or, existing actuality, is movement and unfolded coming-to-be” (ibid).

As an added bonus, he puts an explicit caveat on the previous talk about the subject. What really matters is the actuality of the concept as self-moving, not the putative fixed point of the subject. I like this vocabulary much better.

“The subject is accepted as a fixed point on which the predicates are attached for their support through a movement belonging to what it is that can be said to know this subject and which itself is also not to be viewed as belonging to the point itself, but it is solely through this movement that the content would be portrayed as the subject. Because of the way this movement is constituted, it cannot belong to the point, but after the point has been presupposed, this movement cannot be constituted in any other way, and it can only be external. Thus, not only is the former anticipation that the absolute is subject not the actuality of the concept, but it even makes that actuality impossible, for it posits the concept as a point wholly at rest, whereas the concept is self-movement” (p. 15).

Not only does he emphasize the movement of the concept, but he even mentions the content being “portrayed” as the subject. (See also Ideas Are Not Inert.)

Nature, Ends, Normativity

From an Aristotelian point of view, the works of nature result from an ordering of ends. In modern terms, nature for Aristotle is not “value free”, and I take this to be a good thing. But from a strict Kantian point of view, we are the bearers of value, and the attribution of ends to nature independent of us is only a kind of beneficial heuristic projection. But if we radicalize the Kantian primacy of practical reason in the way that Brandom sees Hegel as doing, then all our theoretical accounts of nature, including those commonly regarded as value-free — and everything else we think, feel, and do — ultimately have a dependency on our inquiries into value and normativity.

From a Kantian point of view, our only access to objective nature is through our rational, discursive understanding. The very objectivity we attribute to nature depends on the objectivity of our understanding of it. Objectivity itself is a normative attitude. I think Kant and Aristotle ultimately agree in recognizing that we don’t have direct access to how things are in themselves, and that how things are in themselves is always a matter of discursive inference, in which the last word is never said.

Hegel emphasizes that the objectivity of understanding we achieve in this way is not a private possession, but something larger than us in which we participate. (See also Teleology After Kant.)

Thoughts on Teleology

Teleology is another subject on which my perspective has changed drastically over the years.

After a youthful fascination with Plotinus, my main interest turned toward the diverse group of writers loosely associated with French “structuralism”, several of whom were very interested in Spinoza. For some years, Spinoza became the great philosopher I identified with most. I had not explicitly thought much about teleology before, but Spinoza’s very sharp critique in the appendix to book 1 of the Ethics impressed me greatly. At the time, I did not trouble myself over whether it was fair to the historic Aristotle. I defended without reservation the strong determinism of Spinoza and the Stoics, emphasizing an understanding of the causes of things as the main path to enlightenment. At this time also, some contemporary writers on mathematical “chaos theory” were proposing what they called a superdeterminism, which would allow for deterministic explanation of all sorts of nonlinear phenomena, by an innovative separation of the notion of determinism from its traditional connotations of predictability. I had not yet begun to question what I have been referring to here as the “modern notion” of causality. My great preoccupation was with defending the possibility of ethics within a deterministic context.

My deeper engagement with Aristotle began initially with problems of things “said in many ways”. In my professional work as a data modeler, I was very concerned with the ambiguities of common-sense apprehensions of things, which I wanted to overcome in Platonic fashion. The univocity that Aristotle treats in a balanced way I initially saw more one-sidedly as an ideal to aim for in the quest for knowledge, though without underestimating the difficulty of attempting to treat everything in a univocal manner, or as comprehended by a single grand, consistent theory. Meanwhile, my personal interests were focused on questions of the interpretation of the history of human cultural development.

Gradually, I became more and more impressed with the importance of what I came to call “objective ambiguity” in history — the idea that this was not just a defect of our understanding or interpretation, but that the most objective reality of the concrete world may often reflect mixed or “in between” states of things. Eventually, I came to recognize that Aristotle, perhaps more than any other of the great philosophers, deeply thought about this and took it into account. I became aware of the arguments of Leibniz that all necessity is hypothetical, then realized Aristotle had already said that all necessity in generated things is hypothetical.

As Spinoza said, strict causal necessity rules out the “play” in things that leaves room for teleological explanation. But I have become convinced that that “play” in things is not something to be explained away as a mere appearance. Hypothetical necessity respects both the element of (conditional) necessity in things and this inherent “play”. It now appears to me as a priceless Aristotelian mean, and a kind of Hegelian synthesis of determination and play or flexibility.

The way Aristotle applies hypothetical necessity to determination by ends removes the mystery from final causes. Aristotle emphasizes the alternative that Spinoza ignored — that teleology need not be the product of conscious aims of a supernatural being or beings “intervening” in the natural order. In Aristotle’s non-reductionist view of the intelligibility of nature, natural things are shaped by inherent “tendencies” to seek certain states that are nonetheless not strictly determining. (See also Aristotle on Explanation; Ends; Equivocal Determination; Free Will and Determinism.)

Aristotle on Explanation

Book 1 chapter 1 of Parts of Animals provides an overview of Aristotle’s perspective on explanation in general. It is a nice synthetic text that brings together many of Aristotle’s core concerns, and shows his vision of how natural science ought to fit in with broader philosophy.

He begins by distinguishing between mere acquaintance with an area of study and being educated in it. “For an educated [person] should be able to form a fair judgment as to the goodness or badness of an exposition” (Complete Works, Barnes ed., vol. 1, p. 994). This seems to apply to any subject whatsoever.

Next he raises the more specific question of method. “It is plain then that, in the science which inquires into nature, there must be certain canons, by reference to which a hearer shall be able to criticize the method of a professed exposition, quite independently of the question whether the statements made be true or false” (ibid).

Continuing to emphasize the critical thinking that is the mark of an educated person, he makes it explicit that some of the most important questions about a subject are what I would call second-order questions, having to do with how we ought to approach the matter at hand. The educated person will give due emphasis to these, rather than naively rushing to deliver judgments on questions of fact.

“Ought we, for example (to give an illustration of what I mean) to begin by discussing each separate substance — man, lion, ox, and the like — taking each kind in hand independently of the rest, or ought we rather to lay down the attributes which they have in common in virtue of some common element of their nature? For genera that are quite distinct present many identical phenomena, sleep, for instance, respiration, growth, decay, death, and other similar affections and conditions…. Now it is plain that if we deal with each species independently of the rest, we shall frequently be obliged to repeat ourselves over and over again; for horse and dog and man present every one of the phenomena just enumerated” (ibid).

The educated person looks for explanations, not just facts or correspondences. The specific “dogginess” of a dog, for example, does not explain its sleeping, breathing, and so on. Instead these activities, which it shares with many other animals, are explained by natures common to all of them.

Further, the kind of method Aristotle commends to us is not a matter of following recipes by rote. Instead, it is a thinking approach that involves persistently following the thread of explanations wherever it leads.

“So also there is a like uncertainty as to another point now to be mentioned. Ought the student of nature follow the plan adopted by the mathematicians in their astronomical demonstrations, and after considering the phenomena presented by animals, and their several parts, proceed subsequently to treat of the causes and the reason why; or ought he to follow some other method? Furthermore, the causes concerned in natural generation are, as we see, more than one. There is the cause for the sake of which, and the cause whence the beginning of motion comes. Now we must decide which of these two causes comes first, which second. Plainly, however, that cause is the first which we call that for the sake of which. For this is the account of the thing, and the account forms the starting-point, alike in the works of art and in works of nature. For the doctor and the builder define health or house, either by the intellect or by perception, and then proceed to give the accounts and the causes of each of the things they do and of why they should do it thus” (p. 995).

He raises the question of which kind of cause comes first, because he wants to suggest a different answer from that of the pre-Socratic “physicists” who attempted to explain everything by properties of different kinds of matter. Elsewhere he says that Plato and the atomist Democritus (whose writings are lost) did better than others at following the thread of explanation, but he considers the elaborated account of ends or “that for the sake of which” to be one of his own most important contributions.

Notably he only mentions two kinds of cause here, rather than the classic four. Similarly, there are passages in other texts where he lists a different number of categories than the canonical ten from the Categories. Later authors often viewed things like causes and categories in a reified, univocal way, as susceptible to exact enumeration. But for Aristotle, these are abstractions from a concrete reality that comes first, to be wielded in a context-sensitive way, so the canonical enumerations are not absolute.

Aristotle’s understanding of the “beginning of motion” is different from that promoted by early modern physics. Conventionally in the reading of Aristotle, the “beginning of motion” is associated with the efficient cause, and these two terms are understood in a somewhat circular way, which is really informed by some broadly intuitive sense of what a “beginning” of motion is. Early modern writers assumed that this “beginning” must be some kind of immediate impulse or force. Aquinas associated it with God’s act of creation and with the free acts of created beings. For Aristotle himself it is neither of these.

My best reading of efficient cause is that it is the means by which an end is realized. In many cases the end is realized not by just one means but by a hierarchy of means (e.g., art of building, carpenter, carpenter’s hammer, hammer’s blow). Aristotle and the scholastics emphasized the top of such hierarchies (e.g., the art of building for Aristotle; God or some metaphysical principle for the scholastics), whereas the early moderns emphasized the bottom (e.g., the hammer’s blow), akin to the proximate cause of concern to liability lawyers. For Aristotle, the art of building and not the hammer’s blow is the true “beginning” of the motion of house construction, because it provides the guiding thread of explanation for the whole process of building the house. But even the art of building is still just a means that gets its meaning from the reasons why we would want to build a house in the first place.

He continues, “Now in the works of nature the good and that for the sake of which is still more dominant than in works of art, nor is necessity a factor with the same significance in them all; though almost all writers try to refer their accounts to this, failing to distinguish the several ways in which necessity is spoken of. For there is absolute necessity, manifested in eternal phenomena; and there is hypothetical necessity, manifested in everything that is generated as in everything that is produced by art, be it a house or what it may. For if a house or other such final object is to be realized, it is necessary that first this and then that shall be produced and set in motion, and so on in continuous succession, until the end is reached, for the sake of which each prior thing is produced and exists. So also is it with the productions of nature. The mode of necessity, however, and the mode of demonstration are different in natural science from what they are in the theoretical sciences [e.g., mathematics]…. For in the latter the starting-point is that which is; in the former that which is to be. For since health, or a man, is of such and such a character, it is necessary for this or that to exist or be produced; it is not the case that, since this or that exists or has been produced, that of necessity exists or will exist. Nor is it possible to trace back the necessity of demonstrations of this sort to a starting-point, of which you can say that, since this exists, that exists [as one might do in mathematics]” (ibid).

In Aristotle’s usage, “nature” applies to terrestrial things that are observably subject to generation and corruption. He earlier referred to astronomical phenomena like the apparent motions of the stars and planets as “eternal” because on a human scale of time, these are not observably subject to generation and corruption. For Aristotle, absolute necessity could only apply to things that are absolutely unchanging. We may have a different perspective on astronomy, but that does not affect the logical distinction Aristotle is making. His key point here is that things subject to generation are not subject to absolute necessity. Leibniz took this a step further and argued that hypothetical necessity is the only kind there is. Kant, in arguing that hypothetical and disjunctive judgment (“if A then B” and “not both A and B“) are more fundamental than categorical judgment (“A is B“), made a related move.

Hypothetical necessity has a particular form that is worth noting. As Aristotle points out in the quote above, under hypothetical necessity “it is not the case that, since this or that exists or has been produced, that of necessity exists or will exist”. To give a positive example, hypothetical necessity says that to continue living, we must eat. But it does not in any way dictate a particular series of motions that is the only way this can be accomplished, let alone the whole series of eating-related actions throughout one’s life. Neither does it dictate that we will eat in any particular instance.

How we meet a particular need is up to us. The reality of this flexibility built into nature is all we need to explain freedom of action. Humans can also affirmatively embrace commitments and act on them; that too is up to us. Freedom is not an arbitrary or supernatural power; it simply consists in the fact that nature is flexible, and many things are up to us.

Aristotle contrasts the way a thing is naturally generated with the way it is. “The best course appears to be that we follow the method already mentioned — begin with the phenomena presented by each group of animals, and, when this is done, proceed afterwards to state the causes of those phenomena — in the case of generation too. For in house building too, these things come about because the form of the house is such and such, rather than its being the case that the house is such and such because it comes about thus…. Art indeed consists in the account of the product without its matter. So too with chance products; for they are produced in the same way as products of art” (pp. 995-996).

“The fittest mode, then, of treatment is to say, a man has such and such parts, because the essence of man is such and such, and because they are necessarily conditions of his existence, or, if we cannot quite say this then the next thing to it, namely, that it is either quite impossible for a man to exist without them, or, at any rate, that it is good that they should be there. And this follows: because man is such and such the process of his development is necessarily such as it is; and therefore this part is formed first, that next; and after a like fashion should we explain the generation of all other works of nature” (p. 996).

This way of reasoning backwards from an essence to its prerequisites is complemented by the fact that for Aristotle (and Plato) essences themselves are a prime subject of investigation, and not something assumed. “Begin with the phenomena”, he says.

Many 20th century philosophers have objected to presumptuous talk about the “essence of man”, and to any explanation in terms of essence. But these objections presuppose that the essence is something assumed, rather than being an object of investigation as it clearly was for Plato and Aristotle. Here also it is needful to distinguish between what we might call the distinguishing essence of humanity used to pick out humans — e.g., “rational/talking animal” — and what Leibniz later called the complete essence of each individual. Clearly also, the parts of the human body do not follow directly from “rational/talking animal”, but from many other attributes “presented in the phenomena”. It turns out that humans share these attributes with other animals, and they can therefore be conceptualized as attributes of common genera to which we and those other animals belong.

Because essences themselves are a prime subject of investigation and are ultimately inferred from phenomena, the kind of teleological reasoning Aristotle recommends always has a contingent character, which is how it naturally accounts for what the moderns call freedom. This contingency is built into in the “hypothetical” character of hypothetical necessity.

“Does, then, configuration and color constitute the essence of the various animals and their several parts? For if so, what Democritus says will be correct…. And yet a dead body has exactly the same configuration as a living one; but for all that it is not a man. So also no hand of bronze or wood or constituted in any but the appropriate way can possibly be a hand in more than name. For like a physician in a painting, or like a flute in a sculpture, it will be unable to perform its function” (p. 997).

Aristotle was the historic pioneer of “functional” explanation. Here he insists that the essences of living beings and their parts must be understood in terms of their characteristic activities. This development for the sake of biology parallels the deeper development of the meaning of “substance” in the Metaphysics as “what it was to be” a thing, and as actuality and potentiality.

“If now the form of the living being is the soul, or part of the soul, or something that without the soul cannot exist; as would seem to be the case, seeing at any rate that when the soul departs, what is left is no longer an animal, and that none of the parts remain what they were before, excepting in mere configuration, like the animals that in the fable are turned into stone; if, I say, this is so, then it will come within the province of the natural scientist to inform himself concerning the soul, and to treat of it, either in its entirety, or, at any rate, of that part of it which constitutes the essential character of an animal; and it will be his duty to say what a soul or this part of a soul is” (ibid).

Here it is important that we consider soul in the “phenomena first” way that Aristotle develops it.

“What has been said suggests the question, whether it is the whole soul or only some part of it, the consideration of which comes within the province of natural science. Now if it be of the whole soul that this should treat, then there is no place for any philosophy beside it…. But perhaps it is not the whole soul, nor all of its parts collectively, that constitutes the source of motion; but there may be one part, identical with that in plants, which is the source of growth, another, namely the sensory part, which is the source of change of quality, while still another, and this is not the intellectual part, is the source of locomotion. For other animals than man have the power of locomotion, but in none but him is there intellect. Thus it is plain that it is not of the whole soul that we have to treat. For it is not the whole soul that constitutes the animal nature, but only some part or parts of it” (p. 998).

Aristotle’s opposition to treating the soul as a single lump reflects his overall functional, activity-oriented, and phenomena-first approach.

“Again, whenever there is plainly some final end, to which a motion tends should nothing stand in its way, we always say that the one is for the sake of the other; and from this it is evident that there must be something of the kind, corresponding to what we call nature” (ibid).

Overall teleology always has to do with tendencies, not absolute determinations. He begins to wrap up this introduction by giving another example of the hypothetical necessity whose concept he pioneered.

“For if a piece of wood is to be split with an axe, the axe must of necessity be hard; and, if hard, must of necessity be made of bronze or iron. Now in exactly the same way the body, since it is an instrument — for both the body as a whole and its several parts individually are for the sake of something — if it is to do its work, must of necessity be of such and such a character, and made of such and such materials.”

“It is plain then that there are two modes of causation, and that both of these must, so far as possible, be taken into account, or at any rate an attempt must be made to include them both; and that those who fail in this tell us in reality nothing about nature” (p. 999).

Again, the two modes here are “that for the sake of which” and the phenomena associated with generation. Considering either of these in isolation yields an incomplete understanding, as we see respectively in bad scholasticism and bad empiricism.

“The reason why our predecessors failed to hit on this method of treatment was, that they were not in possession of the notion of essence, nor of any definition of substance. The first who came near it was Democritus, and he was far from adopting it as a necessary method in natural science, but was merely brought to it by constraint of facts. In the time of Socrates a nearer approach was made to the method. But at this period men gave up inquiring into nature, and philosophers diverted their attention to political science and to the virtues that benefit mankind” (ibid).

Socrates and Plato initially pioneered the notion of “that for the sake of which”, but in turning away from the phenomena of generation and becoming, they gave it a somewhat one-sided character.

The subtle way in which Aristotle wields the concept of essence avoids treating it as an absolute, or as something strictly univocal. In any given context, there is a clear relative distinction between essence and accident, but the distinction is not the same across all contexts. Hypothetical necessity provides the mechanism by which what is “accident” at one level of analysis can be incorporated into “essence” at another level. (See also Hermeneutic Biology?; Aristotelian Causes; Secondary Causes; Aristotle’s Critique of Dichotomy; Classification.)

Aristotle’s Critique of Dichotomy

Chapter 3 of the extraordinarily rich book 1 of Aristotle’s Parts of Animals contains a strong critique of the notion of classification by dichotomy, with implications reaching far beyond its original context. The idea that he criticizes is Platonic division into As and not-As, which is intended to result in a binary tree structure (i.e., a tree-shape in which all the branches are binary).

Platonic division was perhaps inspired by the two-sided character of Platonic dialectic, which was concerned with impartially examining the implications of both sides of some disputable question, particularly in the form of arguments for and against some thesis or other. Aristotle’s own dialectic has a more general form that is not bound to arguments for and against, but rather is simply concerned with an impartial examination of the consequences of hypotheses.

But in any case, classification in a world is a different problem from that of impartially examining a single hypothesis.

Ignoring Aristotle’s lesson, and strongly influenced by the more general impoverished notion of logical judgment as grammatical predication, early modern writers on natural history attempted to follow an a priori theory of univocal classification. But for Aristotle, there is no a priori theory of classification. Instead, the starting point is what Kant would call the implicitly schematized manifold of a concrete world.

Aristotle points out that if classification were reducible to the assignment of predicates, then to consistently classify a world or any given collection, there would have to be some one order in which we divide things by one predicate, then another, and so on. By examples he illustrates the fact that by this method, it is impossible to arrive at the division of animal species that we recognize in nature.

He also makes the more general argument that half of the classifying terms in any classification by sequential predication will be negatives, and that negative terms cannot be properly subdivided.

“Again, privative [negative] terms inevitably form one branch of dichotomous division, as we see in the proposed dichotomies. But privative terms in their character of privatives admit of no subdivision. For there can be no specific forms of a negation, of Featherless for instance or of Footless, as there are of Feathered and of Footed. Yet a generic differentia must be subdivisible; for otherwise what is there that makes it generic rather than specific? There are to be found generic, that is to say specifically subdivisible, differentiae; Feathered for instance and Footed. For feathers are divisible into Barbed and Unbarbed, and feet into Manycleft, and Twocleft, like those of animals with bifid hoofs, and Uncleft or Undivided, like those of animals with solid hoofs. Now even with the differentiae capable of this specific subdivision it is difficult enough so to make the classification that each animal shall be comprehended in some one subdivision and not in more than one (e.g. winged and wingless; for some are both — e.g. ants, glowworms, and some others); but far more difficult, impossible, is it to do this, if we start with a dichotomy into two contradictories. For each differentia must be presented by some species. There must be some species, therefore, under the privative heading. Now specifically distinct animals cannot present in their substance a common undifferentiated element, but any apparently common element must really be differentiated. (Bird and Man for instance are both Two-footed, but their two-footedness is diverse and differentiated. And if they are sanguineous they must have some difference in their blood, if blood is part of their substance.) From this it follows that one differentia will belong to two species; and if that is so, it is plain that a privative cannot be a differentia.” (Complete Works, Barnes ed., vol. 1, p. 1000).

Aristotle’s positive conclusion is as as follows:

“We must attempt to recognize the natural groups, following the indications afforded by the instincts of mankind, which led them for instance to form the class of Birds and the class of Fishes, each of which groups combines a multitude of differentiae, and is not defined by a single one as in dichotomy. The method of dichotomy is either impossible (for it would put a single group under different divisions or contrary groups under the same division), or it only furnishes a single differentia for each species…. As we said then, we must define at the outset by a multiplicity of differentiae. If we do so, privative terms will be available, which are unavailable to the dichotomist” (pp. 1001-1002, emphasis added).

This is consistent with Plato’s more general advice that classifiers, like butchers, should “cut at the joints”, i.e., look for natural distinctions rather than imposing artificial ones. Dipping back again to the negative argument, Aristotle adds:

“Now if man was nothing more than a Cleft-footed animal, this single differentia would duly represent his essence. But seeing that this is not the case, more differentiae than this one will necessarily be required to define him; and these cannot come under one division; for each single branch of a dichotomy end in a single differentia, and cannot possibly include several differentiae belonging to one and the same animal.”

“It is impossible then to reach any of the ultimate animal forms by dichotomous division” (p. 1002; see also Classification; Hermeneutic Biology?.)