Ferdinand de Saussure
Other influences upon Derrida are Martin Heidegger, Plato, Søren Kierkegaard, Alexandre Kojève, Maurice Blanchot, Antonin Artaud, Roland Barthes, Georges Bataille, Edmund Husserl, Emmanuel Lévinas, Ferdinand de Saussure, Sigmund Freud, Karl Marx, Claude Lévi-Strauss, James Joyce, Samuel Beckett, J. L. Austin and Stéphane Mallarmé.