Jean-Paul Charles Aymard Sartre ( \ / ˈsɑrtrə \ / ; French : ( saʁtʁ ) ; 21 June 1905 - 15 April 1980 ) was a French philosopher , playwright , novelist , screenwriter , political activist , biographer , and literary critic .
Jean-Paul Charles Aymard Sartre ( 21 June 1905 - 15 April 1980 ) was a French existentialist philosopher , novelist , playwright , screenwriter , and critic .