All theory, dear friend, is gray, but the golden tree of life springs ever green.

Nature does not suffer her veil to be taken from her, and what she does not choose to reveal to the spirit, thou wilt not wrest from her by levers and screws.

The philosophers must station themselves in the middle.

Religion is not in want of art; it rests on its own majesty.

All one needs to do is declare oneself free and one will immediately feel dependent. If you dare to declare yourself dependent, you feel independent.

True art can only spring from the intimate linking of the serious and the playful.

As long as you don't practice it, this dying and becoming, You are only a dreary guest on this dark earth.