If you are considering marriage, ask yourself one question: Will I still enjoy talking with her when I'm old?

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

What is it that you love in others?--My hopes.

Reckoned physiologically, everything ugly weakens and afflicts man. It recalls decay, danger, impotence; he actually suffers a loss of energy in its presence. The effect of the ugly can be measured with a dynamometer. Whenever man feels in any way depressed, he senses the proximity of something ugly. His feeling of power, his will to power, his courage, his pride - they decline with the ugly, they increase with the beautiful.

Anyone who has looked deeply into the world may guess how much wisdom lies in the superficiality of men. The instinct that preserves them teaches them to be flighty light, and false.

You cannot learn to fly by flying. First you must learn to walk, to run, to climb, to dance.

In the knowledge of truth, what really matters is the possession of it, not the impulse under which it was sought.