A Beethoven string-quartet is truly, as some one has said, a scraping of horses' tails on cats' bowels, and may be exhaustively described in such terms; but the application of this description in no way precludes the simultaneous applicability of an entirely different description.

An idea will infect another with its own emotional interest when they have become both associated together into any sort of a mental total.

Impulse without reason is enough, and reason without impulse is a poor makeshift.

The question of free will is insoluble on strictly psychological grounds.

True ideas are those that we can assimilate, validate, corroborate, and verify. False ideas are those that we cannot

The lunatic's visions of horror are all drawn from the material of daily fact. Our civilization is founded on the shambles, and every individual existence goes out in a lonely spasm of helpless agony.

Give your dreams all you've got, and you'll be amazed at the energy that comes out of you.