"Existence is prior to essence. Man is nothing at birth and throughout his life he is no more than the sum of his past commitments. To believe in anything outside his own will is to be guilty of 'bad Faith.' Existentialist despair and anguish is the acknowledgement that man is condemned to freedom. There is no God, so man must rely upon his own fallible will and moral insight. He cannot escape choosing."
?What do we mean by saying that existence precedes essence? We mean that man first of all exists, encounters himself, surges up in the world ? and defines himself afterwards. If man as the existentialist sees him is not definable, it is because to begin with he is nothing. He will not be anything until later, and then he will be what he makes of himself.?
-Jean-Paul Sartre