When you have once seen the glow of happiness on the face of a beloved person, you know that a man can have no vocation but to awaken that light on the faces surrounding him. In the depth of winter, I finally learned that within me there lay an invincible summer.

If God did not exist, we should have to invent him. If God did exist, we should have to abolish Him.

We are living in the era of premeditation and the perfect crime. Our criminals are no longer helpless children who could plead love as their excuse. On the contrary, they are adults and the have the perfect alibi: philosophy, which can be used for any purpose - even for transforming murderers into judges.

To cut short this question of the law of retaliation, we must note that even in its primitive form it can operate only between two individuals of whom one is absolutely innocent and the other absolutely guilty. The victim, to be sure, is innocent. But can the society that is supposed to represent the victim lay claim to innocence?

The important thing isn't the soundness or otherwise of the argument, but for it to make you think.

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.

I see many people die because they judge that life is not worth living. I see others paradoxically getting killed for the ideas or illusions that give them a reason for living (what is called a reason for living is also an excellent reason for dying). I therefore conclude that the meaning of life is the most urgent of questions.