She was a French writer, intellectual, existentialist philosopher, political activist, feminist, and social theorist. While she did not consider herself a philosopher, Beauvoir had a significant influence on both feminist existentialism and feminist theory. Beauvoir wrote novels, essays, biographies, an autobiography, monographs on philosophy, politics, and social issues.
She was the elder daughter of Georges Bertrand de Beauvoir, a legal secretary who once aspired to be an actor, and Françoise Brasseur, a wealthy banker’s daughter and devout Catholic. Simone had one sister, Hélène, who was 2 years younger than her.The family struggled to maintain their bourgeois status after losing much of their fortune shortly after World War I, and Françoise insisted that the two daughters be sent to a prestigious convent school. Simone was deeply religious as a child —- at one point intending to become a nun -— until she experienced a crisis of faith at age 14, after which she remained an atheist for the rest of her life. she studied mathematics at the Institut Catholique and literature/languages at the Institut Sainte-Marie. She then studied philosophy at the Sorbonne, writing her thesis on Leibniz for Léon Brunschvicg. while studying for the agrégation that she met École Normale students Jean-Paul Sartre, Paul Nizan, and René Maheu. The jury for the agrégation narrowly awarded Sartre first place instead of Beauvoir, who placed second and, at age 21, was the youngest person ever to pass the exam.
During October 1929, Jean-Paul Sartre and Simone de Beauvoir became a couple and Sartre asked her to marry him. One day while they were sitting on a bench outside the Louvre, he said, "Let's sign a two-year lease" Near the end of her life, Beauvoir said, "Marriage was impossible. I had no dowry." So they