Cornelius Castoriadis (1922-1997) was a Greek-French philosopher, economist and psychoanalyst. He taught at the École des Hautes Études en Sciences Sociales in Paris and is best known for The Imaginary Institution of Society (trans. Kathleen Blamey, MIT Press, 1998). He is widely recognized as one of the foremost European thinkers of the twentieth century.

Gabriel Rockhill is Assistant Professor of Philosophy at Villanova University, USA. He also teaches at the Centre Parisien d'Etudes Critiques and the Collège International de Philosophie, France. He is the author of Logique de l'histoire: Pour une analytique des pratiques philosophiques (Editions Hermann, 2010) and Pour un historicisme radical: Entre esthétique et politique avec Rancière (Editions du Sandre, forthcoming).