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.

You simply cannot understand psychedelic drugs, which activate the brain, unless you understand something about computers.

We are dealing with the best-educated generation in history. But they've got a brain dressed up with nowhere to go. Science is all metaphor. In the information age, you don't teach philosophy as they did after feudalism. You perform it. If Aristotle were alive today he'd have a talk show. If you don't like what you are doing, you can always pick up your needle and move to another groove. If you take the game of life seriously, if you take your nervous system seriously, if you take your sense organs seriously, if you take the energy process seriously, you must turn on, tune in, and drop out.

A man without justice is a beast, and a man who would make himself a beast forgets the pain of being a man.

If you listen to neurologists and psychiatrists, you'd never fall in love.

To describe externals, you become a scientist. To describe experience, you become an artist.

In a carefully prepared, loving LSD session, a woman will inevitably have several hundred orgasms.