Simone Lucie Ernestine Marie Bertrand de Beauvoir was a French existentialist philosopher, writer, social theorist, and feminist activist. Though she did not consider herself a philosopher, nor was she considered one at the time of her death, she had a significant influence on both feminist existentialism and feminist theory. January 9, 1908 – April 14, 1986; died at 78. Alive at the same time as Barack Obama, Albert Einstein, Pablo Picasso, Franz Kafka, and Pope Francis. Wiki link