We are living in a state of constant scientific revolution. There is not a single area that you can name that is now seen as it was seen a hundred years ago. Nothing is left of the world view of one hundred years ago.

We don't have to look far for miracles because they're all around us. Everything is astonishing. The universe on it's surface is alive with mystery.

The terror of drugs is a terror of giving up control. This is what people are most alarmed about by psychedelics, is the giving up control.

The world which we perceive is a tiny fraction of the world which we can perceive, which is a tiny fraction of the perceivable world.

I think psychedelics are sort of like doing calisthenics in preparation for the marathon at the end of time.

The psychedelic universe, whatever it is, is the major datum of experience. It's larger than this planet. Nobody knows how large it is. The further in you go the bigger it gets. We don't know what to make of something like that. It's the reverse of our expectations.

Don't worry. You don't know enough to worry. . . . Who do you think you are that you should worry, for cryin' out loud. It's a total waste of time. It presupposes such a knowledge of the situation that it is, in fact, a form of hubris.