How does Plato view his philosophical antecedents? Plato and his Predecessors considers how Plato represents his philosophical predecessors in a late quartet of dialogues: the Theaetetus, the Sophist, the Politicus and the Philebus. Why is it that the sophist Protagoras, or the monist Parmenides, or the advocate of flux, Heraclitus, are so important in these dialogues? And why are they represented as such shadowy figures, barely present at their own refutations? The explanation, the author argues, is a complex one involving (...) both the reflective relation between Plato's dramatic technique and his philosophical purposes, and the very nature of his late philosophical views. For in these encounters with his predecessors we see Plato develop a new account of the principles of reason, against those who would deny them, and forge a fresh view of the best life - the life of the philosopher. (shrink)

The Theaetetus provides Plato's fullest discussion of human knowledge and is a rich vehicle for reflection upon its topic. Polansky's commentary demonstrates that the dialogue in fact holds the complete Platonic account of knowledge -- an account which is as sophisticated as any offered by contemporary philosophers.

M. J. Levett's elegant translation of Plato's _Theaetetus_, first published in 1928, is here revised by Myles Burnyeat to reflect contemporary standards of accuracy while retaining the style, imagery, and idiomatic speech for which the Levett translation is unparalleled. Bernard William’s concise introduction, aimed at undergraduate students, illuminates the powerful argument of this complex dialogue, and illustrates its connections to contemporary metaphysical and epistemological concerns.

In this paper I discuss the dialogues between 'Protagoras', Theodorus and Socrates in "Theaetetus" 161-171 and emphasise the importance for this passage of a dilemma which refutation is shown to pose for relativism at 161e-162a. I argue that the two speeches delivered on Protagoras' behalf contain material that is deeply Socratic and suggest that this feature of the speeches should be interpreted as part of Plato's philosophical case against relativism, reflecting the relativist's own inability to defend his theory from attempts (...) to refute it. I then discuss Theodorus' role in the refutation of Protagoras and argue that his voice is needed to get relativism disproved in the self-refutation argument of 171a-c. I conclude with a brief discussion of the image of Protagoras at 171d. (shrink)

Originally published in 1990. This book discusses in a philosophically responsible and illuminating way the progress of the dialogue and its separate sections to improve our understanding of Plato’s work on Theaetetus. An early coverage of this dialogue, this investigation predated a surge in study of Plato’s piece which examined Socratic and pre-Socratic thought. The author’s argument is that the _Theaetetus_ engages in re-evaluation of earlier doctrines of middle-period Platonism as well as reaffirming theories about knowledge. An important work in (...) Platonic studies and epistemology. (shrink)

An outline and discussion of Plato's changing views about the theory of knowledge.