I would only believe in a god who could dance. And when I saw my devil I found him serious, thorough, profound, and solemn: it was the spirit of gravity—through him all things fall. Not by wrath does one kill but by laughter. Come, let us kill the spirit of gravity!

What the sense feeleth, what the spirit discerneth, hath never its end in itself. But sense and spirit would fain persuade thee that they are the end of all things: so vain are they.

There is nothing we like to communicate to others as much as the seal of secrecy together with what lies under it.

Hold a true friend with both your hands.

He who is not a bird should not build his nest over abysses.

Man makes god in his own image.

It is certainly not the least charm of a theory that it is refutable; it is precisely thereby that it attracts the more subtle minds. It seems that the hundred-times-refuted theory of the "free will" owes its persistence to this charm alone; some one is always appearing who feels himself strong enough to refute it.