Full Idea
There are no values or commands to turn to which legitimize our conduct. …We are alone with no excuses.
Gist of Idea
There are no values to justify us, and no excuses
Source
Jean-Paul Sartre (Existentialism and Humanism [1945], p.296), quoted by Kevin Aho - Existentialism: an introduction 6 'Bad'
A Reaction
If there are no values or duties, why might you ever need excuses?
Book Reference
Aho,Kevin: 'Existentialism: an introduction' [Polity 2014], p.103