What history teaches us is that neither nations nor governments ever learn anything from it.

History is not the soil of happiness. The periods of happiness are blank pages in it.

People who are too fastidious towards the finite never reach actuality, but linger in abstraction, and their light dies away.

Nothing great has been and nothing great can be accomplished without passion. It is only a dead, too often, indeed, a hypocriticalmoralizing which inveighs against the form of passion as such.

Science and knowledge, especially that of philosophy, came from the Arabs into the West.

To him who looks upon the world rationally, the world in its turn presents a rational aspect. The relation is mutual.

Every idea, extended into infinity, becomes its own opposite.