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.

History is for human self-knowledge. Knowing yourself means knowing, first, what it is to be a person; secondly, knowing what it is to be the kind of person you are; and thirdly, knowing what it is to be the person you are and nobody else is. Knowing yourself means knowing what you can do; and since nobody knows what they can do until they try, the only clue to what man can do is what man has done. The value of history, then, is that it teaches us what man has done and thus what man is.

Art is community's medicine for that worst disease of the mind, the corruption of consciousness

The children of each generation are taught to want what they are taught they must not have.

The artist must prophesy not in the sense that he foretells things to come, but in the sense that he tells his audience, at the risk of their displeasure, the secrets of their own hearts

All history is the history of thought.

The value of history. ..is that it teaches us what man has done and thus what man is.