Individuality of expression is the beginning and end of all art.

The highest cannot be spoken; it can only be acted.

Take care of your body with steadfast fidelity.

Even though the world as a whole progresses, youth must always start again from the beginning, and as individuals go through the epochs of the world's culture.

A correct answer is like an affectionate kiss.

The deepest, the only theme of human history, compared to which all others are of subordinate importance, is the conflict of skepticism with faith.

All ages have said and repeated that one should strive to know one's self. This is a strange demand which no one up to now has measured up to and, strictly considered, no one should. With all their study and effort, people are directed to what is outside, to the world about them, and they are kept busy coming to know this and to master it to the extent that their purposes require. . . . How can you come to know yourself? Never by thinking, always by doing. Try to do your duty, and you'll know right away what you amount to. And what is your duty? Whatever the day calls for.