3 History and Dialectic Metaphysics

In Metaphysics A 3, Aristotle undertakes to confirm his system of the four causes as a framework for inquiry into first principles, the knowledge of which will constitute wisdom. His strategy will be to survey his philosophical predecessors, in order to establish that none has supplied a cause which cannot be subsumed under his own canonical four. Thus A 3 inaugurates a project not completed until the end of A 6—or, taken more inclusively, A 10, since A 7 summarizes its results, chapters 8 and 9 develop criticisms of some of the views discussed, and chapter 10 reads as a summation of the whole.1 (Much of Metaphysics α also reads, appropriately enough, like a series of reflections on this project: I will note its relevance on occasion below.) Our concern here is with the opening phase of this project. Here Aristotle discusses the steps taken by the earliest philosophers and their successors towards determining the material cause, which led in turn to recognizing its inadequacy as sole first principle [archê]. I divide the text of A 3, 983a24-4b8 into five moves: (1) the introduction of the project (983a24-3b6); (2) the account of the reasoning of the first philosophers (983b6-20); (3) a discussion of Thales, with an excursus on his putative predecessors among the poets (983b20-4a5); (4)