Existence precedes and rules essence.

I was escaping from Nature and at last becoming myself, that Other whom I was aspiring to be in the eyes of others.

In Les Mots I explain the origin of my madness, of my neurosis. This analysis may help the young who dream of writing.

I am alone in the midst of these happy, reasonable voices. All these creatures spend their time explaining, realizing happily that they agree with each other. In Heaven's name, why is it so important to think the same things all together.

Commitment is an act, not a word.

Then I realized what separated us: what I thought about him could not reach him; it was psychology, the kind they write about in books. But his judgment went through me like a sword and questioned my very right to exist. And it was true, I had always realized it; I hadn't the right to exist. I had appeared by chance, I existed like a stone, a plant or a microbe. My life put out feelers towards small pleasures in every direction. Sometimes it sent out vague signals; at other times I felt nothing more than a harmless buzzing.

What is meant here by saying that existence precedes essence? It means first of all, man exists, turns up, appears on the scene, and, only afterwards, defines himself. If man, as the existentialist conceives him, is indefinable, it is because at first he is nothing. Only afterward will he be something, and he himself will have made what he will be.