Jean-Paul Charles Aymard Sartre (, US also ; French: [saʁtʁ]; 21 June 1905 – 15 April 1980) was a French philosopher, political activist, and writer, considered a leading figure in 20th-century French philosophy and Marxism. Sartre was one of the key figures in the philosophy of existentialism (and phenomenology) and was a proponent of Libertarian Marxism. His work has influenced sociology, critical theory, post-colonial theory, and literary studies. He was awarded the 1964 Nobel Prize in Literature despite attempting to refuse it, saying that he always declined official honors and that "a writer should not allow himself to be turned into an institution".
Sartre had an open relationship with prominent feminist and fellow existentialist philosopher Simone de Beauvoir. Together, Sartre and de Beauvoir challenged the cultural and social assumptions and expectations of their upbringings, which they considered bourgeois, in both lifestyles and thought. The conflict between oppressive, spiritually destructive conformity (mauvaise foi, literally, 'bad faith') and an "authentic" way of "being" became the dominant theme of Sartre's early work, a theme embodied in his principal philosophical work Being and Nothingness (L'Être et le Néant, 1943). Sartre provided an introduction to his philosophy in his work Existentialism Is a Humanism (L'existentialisme est un humanisme, 1946), originally presented as a lecture.
Born in Paris, Sartre lost his father at the age of two and was raised primarily by his mother and grandfather, who introduced him to literature. He studied at the prestigious École Normale Supérieure, where he developed a deep interest in philosophy, influenced by thinkers like Henri Bergson, Edmund Husserl, and Martin Heidegger. Sartre's early academic career included teaching in several French lycées and engaging in provocative pranks and debates.
Sartre's life was marked by strong political engagement. During World War II, he was drafted, captured, and later released, after which he co-founded the resistance group Socialisme et Liberté. Though the group dissolved, Sartre became an influential voice in occupied France, contributing to underground literature and writing plays like No Exit. After the war, he co-founded the journal Les Temps modernes and increasingly used his platform to advocate for political and social causes. He supported anti-colonial movements, condemned French policies in Algeria, opposed U.S. intervention in Vietnam, and aligned himself at various times with Marxism and Maoism. Despite declining health in his later years, Sartre remained committed to activism and intellectual debate until his death in 1980. His funeral drew 50,000 mourners.
Jean-Paul Sartre was born on 21 June 1905 in Paris, the only child of Jean-Baptiste Sartre, an officer of the French Navy, and Anne-Marie (Schweitzer). When Sartre was two years old, his father died of an illness, which he most likely contracted in Indochina. Anne-Marie moved back to her parents' house in Meudon, where she raised Sartre with help from her father Charles Schweitzer, a teacher of German who taught Sartre mathematics and introduced him to classical literature at a very early age. The theologian/organist/physician Albert Schweitzer was Sartre's cousin. When he was twelve, Sartre's mother remarried, and the family moved to La Rochelle, where he was frequently bullied, in part due to the wandering of his blind right eye (sensory exotropia).
As a teenager in the 1920s, Sartre became attracted to philosophy upon reading Henri Bergson's essay Time and Free Will: An Essay on the Immediate Data of Consciousness. He attended the Cours Hattemer, a private school in Paris. He studied and earned certificates in psychology, history of philosophy, logic, general philosophy, ethics and sociology, and physics, as well as his diplôme d'études supérieures (roughly equivalent to an MA) in Paris at the École Normale Supérieure (ENS), an institution of higher education that was the alma mater for several prominent French thinkers and intellectuals. (His 1928 MA thesis under the title "L'Image dans la vie psychologique: rôle et nature" ["Image in Psychological Life: Role and Nature"] was supervised by Henri Delacroix.) It was at ENS that Sartre began his lifelong, sometimes fractious, friendship with Raymond Aron. He also befriended Paul Nizan, whom he considered his alter ego during the university years and who shared his literary ambitions. Perhaps the most decisive influence on Sartre's philosophical development was his weekly attendance at Alexandre Kojève's seminars, which continued for a number of years.
From his first years in the École normale, Sartre was one of its fiercest pranksters. In 1927, his antimilitarist satirical cartoon in the revue of the school, which he co-wrote with Georges Canguilhem, particularly upset the director Gustave Lanson. In the same year, with his comrades Nizan, Larroutis, Baillou and Herland, he organized a media prank following Charles Lindbergh's successful New York City–Paris flight; Sartre and his friends called newspapers and informed them that Lindbergh was going to be awarded an honorary École degree. Many newspapers, including Le Petit Parisien, announced the event on 25 May. Thousands, including journalists and curious spectators, showed up, unaware that what they were witnessing was a stunt involving a Lindbergh look-alike. The scandal led Lanson to resign.
Around 1928, Sartre was hired as a private French tutor by the Japanese philosopher Kuki Shūzō. It is at times speculated that Kuki, who would study with Martin Heidegger and Edmund Husserl in Germany, may have been the first to stimulate Sartre's interest in phenomenology. However Sartre's engagement with Husserl's phenomenology is known to date from a later incident in 1932, when a remark on the topic by Raymond Aron, fresh from Berlin, overwhelmed Sartre during a discussion with him at the Bec de Gaz cafe in Montparnasse.
From 1931 until 1945, Sartre taught at various lycées in Le Havre (at the Lycée de Le Havre, the present-day Lycée François-1er (Le Havre), 1931–1936), Laon (at the Lycée de Laon, 1936–37), and, finally, Paris (at the Lycée Pasteur, 1937–1939, and at the Lycée Condorcet, 1941–1944; see below).
In 1932, Sartre read Voyage au bout de la nuit by Louis-Ferdinand Céline, a book that had a remarkable influence on him.
In 1933–34, he succeeded Raymond Aron at the Institut français d'Allemagne in Berlin where he studied Edmund Husserl's phenomenological philosophy. Aron had already advised him in 1930 to read Emmanuel Levinas's Théorie de l'intuition dans la phénoménologie de Husserl (The Theory of Intuition in Husserl's Phenomenology). In 1939, Sartre published an article on Husserl's intentionality in André Gide's literary magazine La Nouvelle Revue française, which served as a manifesto for his "revolutionary" project of fusing philosophy and literature, and which won him a following among philosophy teachers. The article marked the beginning of Sartre's career as a literary critic under the wing of the journal's editor-in-chief Jean Paulhan.
The neo-Hegelian revival led by Alexandre Kojève and Jean Hyppolite in the 1930s inspired a whole generation of French thinkers, including Sartre, to discover Hegel's Phenomenology of Spirit.
In 1939, Sartre was drafted into the French Army, where he served as a meteorologist. He was captured by German troops in 1940 in Padoux, and he spent nine months as a prisoner of war—in Nancy and finally in Stalag XII-D, Trier, where he wrote his first theatrical piece, Bariona, ou le fils du tonnerre, a drama concerning Christmas. It was during this period of confinement that Sartre read Martin Heidegger's Sein und Zeit, later to become a major influence on his own essay on phenomenological ontology. Because of poor health (he claimed that his poor eyesight and exotropia affected his balance), Sartre was released in April 1941. According to other sources, he escaped after a medical visit to the ophthalmologist. Given civilian status, he recovered his teaching position at Lycée Pasteur in Neuilly, near Paris, and settled at the Hotel Mistral. In October 1941, he was given a position, previously held by a Jewish teacher who had been forbidden to teach by Vichy law, at the Lycée Condorcet in Paris.