In July 1964, a major five-day conference on Friedrich Nietzsche took place at the Royaumont Abbey just north of Paris. Organized by Gilles Deleuze, with input from Jean Wahl, Deleuze invited presentations from both younger philosophers like Michel Foucault and Gianni Vattimo, as well as from distinguished senior philosophers, including Jean Wahl, Jean Beaufret, Karl Löwith, and Gabriel Marcel. Wahl’s presentation characteristically focused on Nietzsche as an irreducibly contradictory thinker in whom conflicting states coexist in a tension without resolution, in which order is imposed even as chaos is affirmed. In his talk and in the discussion which follows, one gets a good sense of how Wahl approached Nietzsche’s thought and how Nietzsche’s thought was a fundamental resource for Wahl throughout his career.