Who is jean-paul sarte?

Jean-Paul Sartre was a French philosopher, playwright, novelist, and political activist, best known for his role in developing existentialism. Born in 1905, he emphasized the importance of individual freedom, choice, and responsibility in a seemingly indifferent universe. His notable works include "Being and Nothingness," "Nausea," and the play "No Exit." Sartre was also a prominent figure in leftist politics and declined the Nobel Prize in Literature in 1964.