Cornelius Castoriadis

Greek-French philosopher and psychoanalyst who argued that society is constituted by a radical social imaginary — a creative capacity for instituting new meanings — and developed a philosophy of radical autonomy.

The imaginary institution of society: social reality is not determined by economic base or rational principles but by a radical imaginary that creates meanings and institutions. Autonomy: the capacity of a society or individual to give itself laws rather than receive them from elsewhere. Critique of both capitalism and Marxist-Leninist socialism.