Abstract

In Chapter 9 of the first book of the Metaphysics Aristotle criticizes “those who posit the Ideas as causes”. His second group of criticisms urges that “the ways in which we try to prove that the forms exist” are unsatisfactory, and he enumerates five such ‘ways’. Alexander of Aphrodisias, in his commentary on the passage, offers to explain in more detail what the five ways were and why each is a cul-de-sac. Gail Fine’s On Ideas is a commentary on this section of Alexander’s commentary on Aristotle.