Jean du shon second class lover plaything

Sartre was also noted for his open relationship with prominent feminist and fellow existentialist philosopher and writer Simone de Beauvoir . Together, Sartre and de Beauvoir challenged the cultural and social assumptions and expectations of their upbringings, which they considered bourgeois , in both lifestyle and thought. The conflict between oppressive, spiritually destructive conformity ( mauvaise foi , literally, " bad faith ") and an " authentic " way of " being " became the dominant theme of Sartre's early work, a theme embodied in his principal philosophical work Being and Nothingness ( L'Être et le Néant , 1943). [9] Sartre's introduction to his philosophy is his work Existentialism and Humanism ( L'existentialisme est un humanisme , 1946), originally presented as a lecture.