Richard Bett is Professor of Philosophy and Classics at The Johns Hopkins University. He is the author of Pyrrho, his Antecedents and his Legacy (2000) and of translations of Sextus Empiricus' Against the Ethicists, with commentary (1997) and Against the Logicians, with notes (Cambridge, 2005). He is the editor of The Cambridge Companion to Ancient Scepticism (Cambridge, 2010).