Luca Castagnoli is the Stavros Niarchos Foundation Clarendon Associate Professor in Ancient Greek Philosophy at the University of Oxford, and a Fellow of Oriel College. He is the author of Ancient Self-Refutation (Cambridge, 2010) and the co-editor of Greek Memories: Theories and Practices (Cambridge, 2019). Paolo Fait is the Anthony Quinton Fellow in Classical Philosophy at New College, Oxford. He has published a translation and commentary on Aristotle's Sophistical Refutations (2007) and articles on Aristotle's logic and metaphysics.