Thomas Bénatouïl is Professor of Ancient Philosophy at the Université de Lille. He has published two books in French on Stoicism and many papers in French and English on Hellenistic and Imperial philosophy and on the contemporary reception of Stoicism. He is currently working on the Academy from Plato to Cicero. Katerina Ierodiakonou is Professor of Ancient Philosophy at the University of Athens and at the University of Geneva. She has published extensively on ancient and Byzantine philosophy, especially in the areas of epistemology and logic. She is currently working on a monograph about ancient theories of colour, as well as on an edition, translation and commentary of Theophrastus' De sensibus and of Michael Psellos' paraphrase of Aristotle's De interpretatione.