During his youth, marked by dictatorship, war, occupation and liberation, studied philosophy, economics and law at Athens, as well military in a Trotskyist faction of the Greek Communist Party. He emigrated to France in 1945, developed an accurate analysis of "bureaucratic capitalism", both the West and the East, and was co-founder and organizer of the group and the journal Socialisme ou Barbarie (1949-1965). Economist at the OECD (1948-1970), was dedicated to the practice of psychoanalysis since 1973 and was director of studies at the Ecole des Hautes Etudes en Sciences Sociales, where he taught seminars between 1980 and 1995, currently being published. Rabid critic of the intellectual fashions of his time, as well as all historical determinism, developed the concepts of 'self-institution of society "and" social imaginary ". In this same Editorial his works have been published Insignificance and imagination. Dialogues (2002) and On the Political Plato (2004).