There is but one truly serious philosophical problem and that is suicide. Judging whether life is or is not worth living amounts to answering the fundamental question of philosophy. All the rest — whether or not the world has three dimensions, whether the mind has nine or twelve categories — comes afterwards. These are games; one must first answer.

Rule: Start by looking for what is valid in every man.

Once one's up against it, the precise manner of one's death has obviously small importance.

You will always win if you make an effort, no matter how much. However, if you failed it means you were too lazy.

Man is the only creature that refuses to be what he is.

Wandering seemed no more than the happiness of an anxious man.

Man wants to live, but it is useless to hope that this desire will dictate all his actions.