L. S. Carrier

I argue that a modern gloss on Aristotle’s notions of Form and Matter not only allows us to escape a dualism of the psychological and the physical, but also results in a plausible sort of materialism. This is because Aristotle held that the essential nature of any psychological state, including perception and human thought, is to be some physical property. I also show that Hilary Putnam and Martha Nussbaum are mistaken in saying that Aristotle was not a materialist, but a functionalist. His functionalism should instead be given a materialistic interpretation, since he holds that only the appropriate sort of matter can realize the human psyche. Aristotle’s functionalism is therefore best viewed as a “causal functionalism,” in which functional descriptions enable us to find the right sort of material embodiment. By sidestepping dualistic assumptions, Aristotle also avoids having to deal with any further notion of consciousness.

If skepticism is once again fashionable, then much of the credit must go to Peter Unger who gives a sustained defense of an ultra-pyrrhonian position in his book, Ignorance: A case for Skepticism. Starting with a version of the traditional argument that we know nothing about the external world, Unger plunges deeper into skeptical waters by next arguing that there is at most hardly anything which we know to be so; and he scarcely pauses before proceeding to defend the stronger conclusion of ‘universal ignorance,’ the thesis that nobody ever knows anything to be the case. I view Unger's thesis and the arguments that led him to it as a challenge to be overcome, not by an appeal to dogmatism - which Unger sees as the only alternative to skepticism - but by recourse to hard-biting arguments of the sort in which Unger himself puts his faith. In what follows I shall attempt to restate Unger's three main skeptical arguments with a view to showing that their bite is not nearly so hard as he imagines.