Simone de Beauvoir

Simone Lucie Ernestine Marie Bertrand de Beauvoir was born on 9 January 1908 in a bourgeois apartment on the Boulevard Raspail in Paris — the elder daughter of a lawyer father and a devout Catholic mother. The world into which she was born expected her to marry well, manage a household, and subordinate her ambitions to those of a husband. Instead, she became perhaps the most influential philosopher of women's liberation in the twentieth century, transforming the conversation about what it means to be born female in a world built by and for men.

A ferociously gifted student, de Beauvoir passed her baccalaureate exams with distinction and enrolled at the Institut Catholique and the Institut Sainte-Marie before entering the Sorbonne to study philosophy. In 1929, she sat the highly competitive agrégation examination in philosophy alongside Jean-Paul Sartre. She finished second — to Sartre — becoming the youngest person ever to pass the exam at 21. The relationship she and Sartre forged that year — intellectual partnership, open romanticism, lifelong commitment without marriage or cohabitation — was itself a radical philosophical statement about freedom and authenticity.

For a decade, de Beauvoir wrote novels and philosophical essays exploring existentialist themes of freedom, responsibility, and the tension between self and other. Then, in 1949, she published The Second Sex — a 972-page masterwork of philosophy, history, biology, psychology, and social analysis that asked a deceptively simple question: what does it mean to be a woman? Her answer was seismic. "One is not born, but rather becomes, a woman," she declared, arguing that femininity was not a biological destiny but a social construction imposed by a male-dominated culture that defined women as the eternal "Other."

"One is not born, but rather becomes, a woman. No biological, psychological, or economic fate determines the figure that the human female presents in society."

Key Milestones

Architect of Modern Feminism

The Second Sex arrived in the United States in 1953 in an abridged translation and immediately sparked debate that would not die for generations. Betty Friedan cited it as a key influence on The Feminine Mystique (1963). Kate Millett, Germaine Greer, and Gloria Steinem all drew on de Beauvoir's framework. The core insight — that gender is performed rather than innate, that "woman" is a role constructed by patriarchal society — would re-emerge decades later in Judith Butler's gender theory and remains the foundation of contemporary feminist discourse.

De Beauvoir was not merely a theorist. She was an activist who put her name and reputation on the line. In 1970 she signed the Manifeste des 343 — a declaration by 343 prominent French women that they had each had an illegal abortion — at enormous personal and professional risk. She campaigned against France's colonial war in Algeria, against the death penalty, and for the rights of the elderly in her unflinching memoir A Very Easy Death (1964). Her four-volume autobiography remains one of the most searching self-examinations by any intellectual of the twentieth century, laying bare the contradictions of a life committed simultaneously to freedom and to Sartre.

Related Figures