The Persian al-Ghazali (1055–1111 CE), known to the Latins as Algazel, is regarded as the greatest theologian of the Ash‘arite school of Sunni Islam. According to Wikipedia, the Ash‘arites are one of several schools that advocate the use of reason in expounding the Islamic revelation. In this sense they are definitely to be distinguished from the literalists. The Ash‘arites nonetheless defend a radical version of omnipotence.

Ghazali wrote a work that circulated in the Latin world, which summarized the views of the Islamic philosophers accurately enough that the Latins mistakenly regarded him as one of them. “Philosophy” in this context principally refers to the thought of al-Farabi and Ibn Sina (Avicenna). But Ghazali is best known to historians of philosophy for his sharp attack The Incoherence of the Philosophers, which treated Ibn Sina as representative. Ghazali was a very strong creationist who insisted that creation must be understood as having occurred in time. Like Duns Scotus and William of Ockham a bit later in the West, he defended a radically voluntarist theology.

In a short work called the Decisive Treatise that was never translated to Latin, Ibn Rushd (Averroes) argues as an Islamic jurist that the Koran commands those capable of doing so to study philosophy. Though his philosophy had very little influence in the Islamic world, he was the leading Maliki jurist in al-Andalus and the Maghreb in his day. He wrote the authoritative textbook of Maliki jurisprudence. I learned that Maliki law is still practiced in many Islamic countries.

Ibn Rushd wrote a refutation of Ghazali called The Incoherence of the Incoherence, which interspersedly contains the full text of Ghazali’s work. It circulated in Latin under the title Destructio Destructionum (destruction of the destruction). I’ve transcribed some small excerpts of this historically fascinating book.

The dispute is basically about Aristotle versus creationism. The particular focus of the first part I have excerpted addresses this from the angle of views about the relation between what is eternal and what is in time. The other part I’ve excerpted has to do with Aristotle versus theological voluntarism.

[Ghazali] “The philosophers say: It is impossible that the temporal should proceed from the absolutely Eternal…. When the world begins in time, a new determinant either does or does not arise…. If it does not, the world will stay in the same state of pure possibility as before; if a new determinant does arise… either we shall have an infinite regress or we shall arrive at a principle determining eternally” (Averroes’ Tahafut al-Tahafut (The Incoherence of the Incoherence), tr. Van Den Bergh (1954), p. 1).

[Averroes] “This argument is in the highest degree dialectical and does not reach the pitch of demonstrative proof. For its premises are common notions, and common notions approach the equivocal, whereas demonstrative premises are concerned with things proper to the same genus” (ibid).

Averroes retains Farabi’s exaggerated emphasis on strict demonstration in the sense of the Prior Analytics in Aristotle. Reading Aristotle partly through a Farabian lens, Averroes does not recognize the large place and positive role that Aristotle implicitly gives to dialectic in the sense of the Topics throughout his works. Averroes sees “dialectic” as an intellectually loose approach that easily falls into sophistry.

[Averroes] “For the term ‘possible’ is used in an equivocal way of the possible that happens more often than not, of the possible that happens less often than not, and of the possible with equal chances of happening, and these three types of the possible do not seem to have the same need for a new determining principle” (ibid).

“All these are multifarious and difficult questions which need, each of them, a special examination, both in themselves and in regard to the opinions the ancients held about them. To treat what is in reality a plurality of questions as one problem is one of the well-known seven sophisms, and a mistake in one of these principles becomes a great error by the end of the examination of reality” (pp. 1-2).

[Ghazali] “[The world’s] existence was not willed before and therefore did not happen… at the exact moment it began it was willed by an eternal will and therefore began” (p. 3).

[Averroes] “The act of the agent necessarily implies a change and … each change has a principle which causes it…. [T]he Eternal cannot change in any way. But all this is difficult to prove” (ibid).

“[O]ur expressions ‘eternal will’ and ‘temporal will’ are equivocal, indeed contrary…. [W]hen one says: ‘There is a Willer who wills eternally one of two contraries in Himself’, the definition of the will is abandoned” (p. 4).

[Ghazali summarizing the philosophers] “The effect only takes place when a new event, i.e. entering the house or the arrival of tomorrow, has actually happened…. A delay in the object willed is imaginable only in decision, for decision is not sufficient for the existence of the act” (p. 5). “If, however, the eternal Will is analogous to our decision, it does not suffice to produce the thing decided upon, but the act of creation must be accompanied by a new act of volition, and this brings us again to the idea of a change” (ibid). “[W]ithout the realization of any new condition, this effect comes into existence and is produced. And this is absurd” (p. 6).

[Averroes] “[Ghazali’s] example of divorce based on convention seems to strengthen the argument of the philosophers, but in reality it weakens it. For it enables the Ash’arites to say: In the same way as the actual divorce is delayed after the formula of divorce till the moment when the condition of someone’s entering the house, or any other, is fulfilled, so the realization of the world can be delayed after God’s act of creation until the condition is fulfilled on which this realization depends, i.e. the moment when God willed it. But conventional things do not behave like rational” (ibid).

[Ghazali] “[T]he party which believes in the creation of the world in time through an eternal Will includes so many persons that no country can contain them and no number enumerate them, and they certainly do not contradict the logically minded out of obstinacy, while knowing better in their hearts” (p. 7).

[Averroes] “[T]his argument is mistaken, for it is not a condition of objective truth that it should be known to all” (ibid).

[Ghazali] “[T]o suppose the Creator of the world ignorant of His own work is necessarily absurd” (ibid).

[Averroes] “This assertion belongs to the class of assertions whose contrary is equally false. For there exists no proof which refutes anything that is evidently true, and universally acknowledged. Anything that can be refuted by a demonstrative proof is only supposed to be true, not really true…. Equally, if it is absolutely true that the effect of a cause cannot be delayed after the causation and the Ash’arites claim that they can advance a proof to deny it, then we can be absolutely sure that they cannot have such a proof. If there is a controversy about questions like this, the final criterion rests with the sound understanding which does not base itself on prejudice and passion, when it probes according to the signs and rules by which truth and mere opinion are logically distinguished” (p. 8).

[Ghazaili] “[E]ternity of the world is impossible, for it implies an infinite number and an infinity of unities for the spherical revolutions, although they can be divided by six, by four, and by two” (p. 9).

[Averroes] “This too is a sophistical argument. It amounts to saying: In the same way as you are unable to refute our demonstrative argument for the creation of the world in time, that if it were eternal, its revolutions would be neither even nor uneven, so we cannot refute your theory that the effect of an agent whose conditions to act are always fulfilled cannot be delayed. This argument aims only at creating and establishing a doubt, which is one of the sophist’s objectives…. But when the existence of an eternal prime mover had been proved, whose act cannot be posterior to his being, it followed that there could as little be a beginning for his act as for his being; otherwise his act would be possible, not necessary, and he would not be a first principle…. The agent who has no beginning either for his existence or for those acts of his which he performs without an instrument, has no first instrument either to perform those acts of his without beginning which by their nature need an instrument.”

“But since the theologians mistook the accidental for the essential, they denied this eternal agent” (pp. 10-11).

“It will be clear to you that neither the arguments of the theologians for the temporal creation of the world of which Ghazali speaks, nor the arguments of the philosophers which he includes and describes in his book, suffice to reach absolute evidence or afford stringent proof” (p. 12).

Like Aquinas, Averroes holds that arguments on neither side of the debate for and against creationism reach demonstrative certainty. Averroes defends a theory of eternal “creation” that is far removed from what creationists mean by creation. It has been argued that Albert the Great also had a notion of eternal creation.

[Averroes] “No motion possesses totality or forms an aggregate, i.e. is provided with a beginning or an end, except in so far as it is in the soul, as is the case with time. And it follows from the nature of circular movement that it is neither even nor uneven except as represented in the soul” (p. 13).

“[T]he impossibility of an actual infinite is an acknowledged axiom in philosophical theory, equally valid for material and immaterial things…. Perhaps Avicenna wanted only to satisfy the masses, telling them what they were accustomed to hear about the soul. But this theory is far from satisfactory” (p. 14).

[Ghazali] “We seek to show by all this that the philosophers cannot shake the conviction of their adversaries that the eternal Will is connected with temporal creation, except by claiming its absurdity by the necessity of thought, and that therefore they are in no way different from the theologians who make the same claim against the philosophical doctrines opposed to theirs. And out of this there is no issue” (p. 15).

“[W]e say that the soul of Zaid is either identical with the soul of Amr or different from it; but their identity would mean something absurd, for everyone is conscious of his own identity and knows that he is not another” (ibid).

[Averroes] ” ‘[D]ifferent’ is an equivocal term, and ‘identity’ too is predicated of a number of things which are also called ‘different’…. The souls of Zaid and Amr are one in one sense and many in another; we might say, one in relation to their form, many in relation to their substratum” (pp. 15-16).

“When someone denies a truth of which it is absolutely certain that it is such-and-such, there exists no argument by which we can come to an understanding with him; for every argument is based on known premises about which both adversaries agree. When each point advanced is denied by the adversary, discussion with him becomes impossible, but such people stand outside the pale of humanity and have to be educated” (p. 16, emphasis added).

In emphasizing argument from agreed-upon premises, Averroes treats something like Platonic dialogue as a norm.

[Ghazali] “God before the creation of the world was able to create it, say, one year or two years before He did, and there is no limit to His power; but He seemed to have patience and did not create. Then He created” (p. 17).

[Averroes] “[W]hat has no beginning does not finish or end.” (ibid).

[Ghazali for the philosophers] “[W]e philosophers know by the necessity of thought that one thing does not distinguish itself from a similar except by a differentiating principle…. [I]f you answer that the Will of God is the differentiating principle, then one has to inquire what differentiates the Will, i.e. the reason why it has been differentiated in such or such way (p. 18).”

[Ghazali] “[W]ill is a quality which has the faculty of differentiating one thing from another, and if it had not this faculty, power in itself would suffice…. And to ask why will differentiates one of two similars is like asking why knowledge must comprehend the knowable” (ibid).

[Averroes] “As the theologians were unable to give a satisfactory answer, they took refuge in the theory that the eternal Will is a quality the nature of which is to differentiate between two similar things, without there being for God a differentiating principle which inclines Him to one of two similar acts” (p. 20).

This is the originally Stoic idea of a “freedom of indifference”. The Ash‘arites defend both predestination and theological and anthropological voluntarism.

[Ghazali] “Everyone, therefore, who studies, in the human and the divine, the real working of the act of choice, must necessarily admit a quality the nature of which is to differentiate between two similar things…. Suppose two similar dates in front of a man who has a strong desire for them, but who is unable to take them both. Surely he will take one of them through a quality in him the nature of which is to differentiate between two similar things” (p. 21).

[Averroes] “[I]t is by no means a matter of distinguishing between two similar things when, in this condition, he takes one of the two dates. It is nothing but the admission of an equivalence of two similar things. His will attaches itself therefore merely to the distinction between the fact of taking one of them and the fact of leaving them altogether” (p. 23).

“A definite moment cannot be assigned for the creation of the world, for either time did not exist before it, or there was an infinite time” (p. 32).

“[T]he temporal proceeds from the First Eternal, not in so far as it is temporal but in so far as it is eternal, i.e. through being eternal generically, though temporal in its parts…. for its arising anew is not a new fact, but is an eternal act, i.e. an act without beginning or end. Therefore its agent must be an eternal agent, for an eternal act has an eternal agent, and a temporal act a temporal agent. Only through the eternal element in it can it be understood that movement has neither beginning nor end, and this is meant by its permanence, for movement itself is not permanent, but changing” (p. 36).

[Ghazali on the philosophers] “They assert that he who affirms that the world is posterior to God and God prior to the world cannot mean anything but that He is prior not temporally but essentially” (p. 37).

[Averroes] “[T]he posteriority of the world to the Creator, since He does not precede the world in time, can only be understood as the posteriority of effect to cause” (p. 39).

[Ghazali] “How will you refute the man who claims that creation and annihilation take place through the will of God: if God wills, He creates, and if He wills, He annihilates, and this is the meaning of His being absolutely powerful, and notwithstanding this He does not alter in Himself, but it is only His act that alters?” (p. 83). “[T]he agent must be willing, choosing, and knowing what he wills to be the agent of what he wills, but according to [the philosophers] God does not will, He has no attribute whatever, and what proceeds from Him proceeds by the compulsion of necessity” (p. 87).

[Averroes] “Ghazali’s words ‘The agent must be willing, choosing, and knowing what he wills to be the agent of what he wills’ are by no means self-evident and cannot be accepted as a definition of the maker of the world without a proof, unless one is justified in inferring from the empirical to the divine” (pp. 87-88).

“[H]e who chooses and wills lacks the things which he wills, and God cannot lack anything He wills. And he who chooses makes a choice for himself of the better of two things, but God is in no need of a better condition. Further, when the willer has reached his object, his will ceases and, generally speaking, will is a passive quality and a change, but God is exempt from passivity and change. God is still farther distant from natural action, for the act of the natural thing is a necessity in its substance, but is not a necessity in the substance of the willer and belongs to its entelechy. In addition, natural action does not proceed from knowledge: it has, however, been proved that God’s act does proceed from knowledge. The way in which God becomes an agent and a willer has not become clear in this place, since there is no counterpart to His will in the empirical world. How is it therefore possible to assert that an agent can only be understood as acting through deliberation and choice? For then this definition is indifferently applied to the empirical and the divine” (p. 88).

The argument that the One cannot lack anything is a good example of a neoplatonic argument that was widely adopted and applied to the monotheistic God in later theistic traditions. Although it is speculative in the pre-Hegelian sense, the logic seems unassailable.

Ghazali uses the Aristotelian term “deliberation”, but gives it a different sense. In Aristotle, deliberation determines choice, and there is no separate faculty of will. The idea of a faculty of will separate from reason is a later development that was designed to support the notion of a freedom of indifference. This has the disastrous effect of subordinating reason to arbitrariness.

Aristotle never says that the First cause deliberates, only that it contemplates. The idea of a freedom of indifference is Stoic and only emerged later. Aristotle would not have regarded his notion of deliberation as compatible with the alleged freedom of indifference, because deliberation is concerned with identification of differences or distinctions that have practical import.

[Ghazali] “We say: ‘Agent’ means someone from whom there proceeds an act with the will to act according to choice and with the knowledge of the object willed. But according to the philosophers the world stands in relation to God as the effect to the cause, in a necessary connexion which God cannot be imagined to sever, and which is like the connexion between the shadow and the man, light and the sun, but this is not an act at all” (p. 89).

[Averroes] “The agent is what causes some other thing to pass from potency to actuality and from nonexistence to existence; this actualization occurs sometimes from deliberation and choice, sometimes by nature, and the philosophers do not call a person who throws a shadow an agent, except metaphorically, because the shadow cannot be separated from the man” (ibid).

[Averroes] “His assertion that not every cause is called an agent is true, but his argument that the inanimate is not called an agent is false, for the denial that the inanimate exhibits acts excludes only the rational and voluntary act, not act absolutely, for we find that certain inanimate things have powers to actualize things like themselves; e.g. fire, which changes anything warm and dry into another fire like itself, through converting it from what it has in potency into actuality” (p. 92).

[Ghazali] “If the inanimate is called an agent, it is by metaphor, in the same way as it is spoken of metaphorically as tending and willing” (ibid).

[Averroes] “[W]hen by these expressions is meant that it actualizes another’s potency, it is really an agent in the full meaning of the word” (ibid).

[Ghazali] “This is wrong, because will necessarily implies knowledge, and likewise act necessarily implies will” (ibid).

[Averroes] “But in the definition of ‘act’ knowledge is not included, because actualization of another thing is possible without knowing it” (p. 93).

[Ghazali] “[T]here is as a matter of fact a contradiction when ‘natural act’ is taken in a real sense, only this contradiction is not at once evident to the understanding nor is the incompatibility of nature and act felt acutely, because this expression is employed metaphorically; for since nature is in a certain way a cause and the agent is also a cause, nature is called an agent metaphorically. The expression ‘voluntary act’ is as much redundant as the expression ‘he wills and knows what he wills’ ” (ibid).

[Averroes] “This statement is undoubtedly wrong, for what actualizes another thing, i.e. acts on it, is not called agent simply by a metaphor, but in reality, for the definition of ‘agent’ is appropriate to it. The division of ‘agent’ into ‘natural’ and ‘voluntary agent’ is not the division of an equivocal term, but the division of a genus” (ibid).

“But as a matter of fact the natural agent has an act much more stable than the voluntary agent, for the natural agent’s act is constant — which is not the case with the act of the voluntary agent” (p. 94).

[Ghazali] “[I]f a man were to throw another into a fire and kill him, it is the man who would be called his killer, not the fire…. This proves that the word ‘agent’ is used of one whose act proceeds from his will, and, behold, the philosophers do not regard God as endowed with will and choice” (p. 95).

[Averroes] “This is an answer of the wicked who heap fallacy on fallacy. Ghazali is above this, but perhaps the people of his time obliged him to write this book to safeguard himself against the suspicion of sharing the philosophers’ view. Certainly nobody attributes the act to its instrument, but only to its first mover. He who killed a man by fire is in the proper sense the agent and the fire is the instrument of the killing, but when a man is burned by a fire, without this fact’s depending on someone’s choice, nobody would say that the fire burned him metaphorically” (ibid).

[Ghazali] “Our aim is to show that such is not the meaning of ‘act’ and ‘work’. These words can mean only that which really proceeds from the will. But you reject the real meaning of ‘act’, although you use this word, which is honoured amongst Muslims. But one’s religion is not perfect when one uses words deprived of their sense” (p. 96).

[Averroes] “This would indeed be a correct conclusion against the philosophers, if they should really say what Ghazali makes them say…. He does not unmask their imposture by his words, but he himself deceives by ascribing to them theories which they do not hold” (ibid).

[Ghazali] ” ‘Act’ applies to temporal production, but for [the philosophers] the world is eternal and is not produced in time. The meaning of ‘act’ is ‘to convert from not-being into being by producing it’ and this cannot be imagined in the eternal, as what exists already cannot be brought into existence. Therefore ‘act’ implies a temporal product, but according to them the world is eternal; how then could it be God’s act?” (ibid).

[Averroes] “If the world were by itself eternal and existent (not in so far as it is moved, for each movement is composed of parts which are produced), then, indeed, the world would not have an agent at all. But if the meaning of ‘eternal’ is that it is in everlasting production and that this production has neither beginning nor end, certainly the term ‘production’ is more truly applied to him who brings about an everlasting production than to him who procures a limited production” (pp. 96-97).

“And therefore, just as the eternal existent is more truly existent than the temporal, similarly that which is eternally in becoming is more truly coming to be than that which comes to be only during a definite time” (p. 100).

[Ghazali] “We do not say that the simultaneity of agent and act is impossible, granted that the act is temporal…. It is only an eternal act that we consider impossible, for to call an act that which does not come into being out of not-being is pure metaphor and does not conform to reality…. Our answer is that our aim in this question is to show that you philosophers use those venerable names without justification, and that God according to you is not a true agent, nor the world truly His act, and that you apply this word metaphorically — not in its real sense. This has now been shown” (p. 102).

In Aristotle there is a very important distinction between ordinary “action” as understood by everyone and his own completely original notion of “act”, which, as Gwenaëlle Aubry has very thoroughly documented, is most properly said of entelechy as a self-referential, purely internal determination, and is therefore not an “action” in the ordinary sense at all. In particular, Aristotelian act in its proper sense has nothing to do with efficient causality, especially as that latter notion was transformed by Latin writers such as Aquinas and Suárez. Efficient cause in Aristotle is the instrumental means by which some end is achieved. As such, it is the least primary of Aristotle’s four causes, not the most primary as it is for Aquinas and Suárez. This is a really big difference between them and Aristotle.

[Averroes] “In this argument he supposes that the philosophers concede to him that they only mean by God’s agency that He is the cause of the world, and nothing else, and that cause and effect are simultaneous. But this would mean that the philosophers had abandoned their original statement, for the effect follows only from its cause, in so far as it is a formal or final cause, but does not necessarily follow from its efficient cause, for the efficient cause frequently exists without the effect’s existing” (p. 103).

“[T]he term ‘eternal becoming’ is more appropriate to the world than the term ‘eternity’ ” (p. 104).

“When, however, after a close examination, it was discovered that all things tend to one end, and this end is the order which exists in the world, as it exists in an army through its leader, and as it exists in cities through their government, they came to the conclusion that the world must have one highest principle…. They believed therefore, because of the good which is present in everything, that evil occurs only in an accidental way…. [F]or the existence of much good with a little evil is preferable to the non-existence of much good because of a little evil” (p. 106). “Nowadays, however, … that out of the one all things proceed by one first emanation, is generally accepted, and with our contemporaries we need discuss only this latter statement” (p. 107).

The military metaphor does briefly appear in book Lambda of the Metaphysics. To me though, it has always seemed incongruous with Aristotle’s main idea of the First cause as a pure entelechy.

[Averroes] “But when the philosophers of our religion, like Farabi and Avicenna, had once conceded to their opponents that the agent in the divine world is like the agent in the empirical, and that from the one agent there can arise but one object (and according to all the First was an absolutely simple unity), it became difficult for them to explain how plurality could arise from it” (ibid).

This notion of the First as an absolutely simple One sounds to me more like Plotinus than Aristotle. “According to all” in this context would presumably be a reference to the neoplatonizing Farabian tradition. Of all medieval philosophers, Averroes is probably the closest to being a pure Aristotelian, but that is a relative distinction, not an absolute one. The only completely pure Aristotelian I know of is Aristotle himself. (Though I try to distinguish a genuinely historical Aristotle from the many Aristotles of the commentary tradition, I am certainly no pure Aristotelian either.)

[Averroes] “[T]hey declared that from the First, who is a simple existent, the mover of the highest sphere proceeds, and from this mover, since he is of a composite nature, as he is both conscious of himself and conscious of the First, a duality, the highest sphere, and the mover of the second sphere, the sphere under the highest can arise. This, however, is a mistake, according to philosophical teaching, for thinker and thought are one identical thing in human intellect and this is still more true in the case of the abstract intellects. This does not affect Aristotle’s theory, for the individual agent in the empirical world, from which there can only proceed one single act, can only in an equivocal way be compared to the first agent…. And thereby Aristotle proves that the agent of the human intelligibles is an intellect free from matter, since this agent thinks all things, and in the same way he proves that the passive [sic] intellect is ingenerable and incorruptible, because this intellect also thinks all things” (p. 108).

“They” in this case is clearly a reference to the Farabian tradition. The translator’s choice of “passive” intellect above for the potential intellect reflects the near total absence of specific scholarship on the texts of Averroes that still prevailed in the mid-20th century. In Averroes, the difference between the potential or “material” intellect on the one hand, and the passive “intellect” or the soul’s faculty of cogitation on the other, is huge. (See Cogitation, Intention; Imagination, Cogitation).

[Averroes] “Aristotle connects sensible existence with intelligible, saying that the world is one and proceeds from one, and that this Monad is partly the cause of unity, partly the cause of plurality. And since Aristotle was the first to find this solution, and because of its difficulty, many of the later philosophers did not understand it, as we have shown” (pp. 108-109). “But what we said of this connexion of every existent with the One is something different from what is meant by ‘agent’ and ‘object’, ‘maker’ and ‘product’ in this sublunary world” (p. 112).