If you don't know what your passion is, realize that one reason for your existence on earth is to find it.

Nothing exists for itself alone, but only in relation to other forms of life.

The strong individual loves the earth so much he lusts for recurrence. He can smile in the face of the most terrible thought: meaningless, aimless existence recurring eternally. The second characteristic of such a man is that he has the strength to recognize - and to live with the recognition - that the world is valueless in itself and that all values are human ones. He creates himself by fashioning his own values; he has the pride to live by the values he wills.

Here life itself, life at its best and healthiest, awaits the caprice of the bullet. Let us see the development of the day. All else may stand over, perhaps for ever. Existence is never so sweet as when it is at hazard.

Existence really is an imperfect tense that never becomes a present.

I want to teach men the sense of their existence, which is the Superman, the lightning out of the dark cloud man.