The coward only threatens when he is safe.

To have more, you must first be more.

Talent is nurtured in solitude; character is formed in the stormy billows of the world.

The mediator of the inexpressible is the work of art.

Wild dreams torment me as I lie. And though a god lives in my heart, though all my power waken at his word, though he can move my every inmost part - yet nothing in the outer world is stirred. thus by existence tortured and oppressed I crave for death, I long for rest.

God made man simple, but how he changed and got complicated is hard to say.

Without my attempts in natural science, I should never have learned to know mankind such as it is. In nothing else can we so closely approach pure contemplation and thought, so closely observe the errors of the senses and of the understanding, the weak and strong points of character.