The Paralogisms section of Kant’s Critique of Pure Reason provides an excellent account of dubious metaphysical theses about the soul common to Descartes and others. They are that the soul is a substance in its own right; that it is simple; that it is a person; and that it is directly conscious of itself, but conscious of other things only as representations. Aristotle was a careful minimalist in his talk about the soul, and did not assert any of these. I have addressed theses of this sort myself numerous times (see, e.g., Mind Without Mentalism; Aristotelian Subjectivity; Subject; God and the Soul; Soul, Self; Parts of the Soul.)