“There is no reality except in action. Man is nothing else than his plan; he exists only to the extent that he fulfills himself; he is therefore nothing else than the ensemble of his acts, nothing else than his life.”

Jean‑Paul Sartre (1905–1980) was a French philosopher, playwright, novelist, and political activist best known for developing the existentialist movement. His works such as *Being and Nothingness* and the play *No Exit* explore themes of freedom, responsibility, and the human condition. Sartre was awarded the Nobel Prize in Literature in 1964, which he declined.