Great passions are incurable diseases.

I am amazed to see how deliberately I have entangled myself step by step. To have seen my position so clearly, and yet to have acted so like a child!

He is dead in this world who has no belief in another.

Nature! We live in her midst and know her not. She is incessantly speaking to us, but betrays not her secret. We constantly act upon her, and yet have no power over her. Variant: NATURE! We are surrounded and embraced by her: powerless to separate ourselves from her, and powerless to penetrate beyond her.

Fools and wise men are equally harmless. It is the half-fools and half-wise that are dangerous.

It is opposition that makes us productive.

Oh, happy he who still hopes he can emerge from Error's boundless sea! - Faust.