The Parmenides has been unduly overlooked in discussions of hypothesis in Plato. It contains a unique method for testing first principles, a method I call ‘exploring both sides’. The dialogue recommends exploring the consequences of both a hypothesis and its contradictory and thematizes this structure throughout. I challenge the view of Plato’s so-called ‘method of hypothesis’ as an isolated stage in Plato’s development; instead, the evidence of the Parmenides suggests a family of distinct hypothetical methods, each with its own peculiar (...) aim. Exploring both sides is unique both in its structure and in its aim of testing candidate principles. (shrink)

The complex way Meno's paradox is presented in the Meno forces reflection on both the external conditions on inquiry—its objects—and its internal conditions—the state of mind of the person who inquires. The theory of recollection does not fully account for the internal conditions—as Plato makes clear in the critique of Meno's puzzle to be found in the Euthydemus. I conclude that in the Euthydemus Plato is inviting us to reject the externalist account of knowledge urged on Socrates by the sophists (...) in favour of a more richly internalist epistemology. (shrink)