A.G. Long is Professor at the School of Classics at University of St Andrews. He is the author of Conversation and Self-Sufficiency in Plato (2013) and Death and Immortality in Ancient Philosophy (2019). Long edits the book series Key Themes in Ancient Philosophy and is the Managing Editor of the journal Phronesis. Barbara M. Sattler taught at University of Illinois Urbana-Champaign, Yale University, and the University of St. Andrews, before taking up the chair of ancient and medieval philosophy at Bochum. She is the author and co-editor of many books including The Concept of Motion in Ancient Greek Thought (2020) and Philosophy of Mathematics from the Pythagoreans to Euclid (forthcoming).