To regard such a positive mental science [psychology] as rising above the sphere of history, and establishing the permanent and unchanging laws of human nature, is therefore possible only to a person who mistakes the transient conditions of a certain historical age for the permanent conditions of human life.

As a child growing up among artists I learned to think of a picture not as a finished product exposed for the admiration of the virtuosi, but as the visible record, lying about the house, of an attempt to solve a definite problem in painting.

Perfect Freedom is reserved for the man who lives by his own work, and in that work does what he wants to do.

Like other revolutionaries I can thank God for the reactionaries. They clarify the issue.

If an artist may say nothing except what he has invented by his own sole efforts, it stands to reason he will be poor in ideas. If he could take what he wants wherever he could find it, as Euripides and Dante and Michelangelo and Shakespeare and Bach were free, his larder would always be full, and his cookery might be worth tasting.

Nothing capable of being memorized is history.

The dance is the mother of all languages.