“He walked on in silence, the solitary sound of his footsteps echoing in his head, as in a deserted street, at dawn. His solitude was so complete, beneath a lovely sky as mellow and serene as a good conscience, amid that busy throng, that he was amazed at his own existence; he must be somebody else's nightmare, and whoever it was would certainly awaken soon.”

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.