This paper discusses two theses about Plato that Nietzsche defends in his lectures on the Athenian philosopher offered by him at the University of Basel during the 1870s. Nietzsche’s first claim concerns Plato’s philosophy: relying on Aristotle, Nietzsche holds that Plato was initially brought to a metaphysically motivated version of scepticism as a result of his affiliation to the Cratilian interpretation of Heraclitus. Although the Socratic method of defining and testing concepts as well as its metaphysical complement, the theory of (...) Forms, has allowed Plato to overcome this kind of metaphysically motivated scepticism, Nietzsche argues that such an overcoming is only provisional if one needs to accept the authenticity of Parmenides, then the arguments displayed in this later dialogue lead to a sceptical conclusion regarding the theory of Forms. The second claim advanced by Nietzsche in his lectures concerns Plato’s philosophical character, which is identified with the figures of the legislator and the political reformer. According to Nietzsche, all of Plato’s philosophical commitments must ultimately be interpreted in the light of his political project, for here there is no place for scepticism anymore. (shrink)

This article investigates why Hegel contrasts doubt and ancient scepticism in his 1802 essay, and shows how original this view is. The article shows that this separation rests on ascribing a certainty in the act of negating to the sceptic; this can be seen, first, in Hegel’s interpretation of the relationship between Pyrrhonism and the New Academy and, second, in his reading of Plato’s Parmenides.