Cornelius Castoriadis (1922-1997) was a political activist and author of a large corpus on topics of political philosophy, ontology, psychoanalysis, and economics. He co-founded the French political group Socialisme ou Barbarie (1949-1965), later worked as an economist and psychoanalyst, and served from 1980-1995 as director of studies at the École des hautes études en sciences sociales (EHESS) in Paris.

John V. Garner is Assistant Professor of Philosophy at the University of West Georgia. He is the primary translator of Postscript on Insignificance: Dialogues with Cornelius Castoriadis (2011) and the author of The Emerging Good in Plato's Philebus (2017).