I learned more about psychology in the five hours after taking these mushrooms than in the preceding 15 years of studying and doing research in psychology.

I declare that The Beatles are mutants. Prototypes of evolutionary agents sent by God, endowed with a mysterious power to create a new human species, a young race of laughing freemen.

Of course, the drug does not produce the transcendent experience. It merely acts as a chemical key — it opens the mind, frees the nervous system of its ordinary patterns and structures.

I think that marijuana makes you stupid but sensual. I've watched many of my friends and loved ones become more erotic and dumber - just going around with a glazed expression on their faces from their last orgasms to the next - and found them really quite boring.

Turn on, Tune in, Drop out.

Civilization is unbearable, but it is less unbearable at the top.

The universe is an intelligence test.