Dimitri El Murr is a Lecturer in Ancient Philosophy at the University of Paris 1 Panthéon-Sorbonne and a Junior Member of the Institut Universitaire de France. His research focuses on ancient philosophy, especially Socrates, Plato and political Platonism in Antiquity. He has published many articles on different aspects of Plato’s thought. He is also the author of a collection of texts on the philosophy of friendship, with an introduction and commentaries (L’Amitié, Paris, 2001). He co-edited, with A. Brancacci and D. P. Taormina, a collective volume of essays on Plato (Aglaïa. Autour de Platon. Mélanges offerts à Monique Dixsaut, Paris, 2010). He recently edited a volume on the Theaetetus (La Mesure du savoir. Études sur le Théétète, Paris, Vrin, 2013) and coedited, with G. Boys-Stones and Ch. Gill, The Platonic Art of Philosophy, Cambridge University Press, 2013. His last book, entitled Savoir et Gouverner. Essai sur la science politique platonicienne (Paris, Vrin) is in press and due to be published before the end of 2014