We are dealing with the best-educated generation in history. They are a hundred times better educated than their grandparents, and ten times more sophisticated. There has never been such an open-minded group. The problem is that no one is giving them anything fresh. They've got a brain dressed up with nowhere to go.

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.

My advice to myself and to everyone else, particularly young people, is to turn on, tune in and drop out. By drop out, I mean to detach yourself from involvement in secular, external social games. But the dropping out has to occur internally before it can occur externally. I'm not telling kids just to quit school; I'm not telling people to quit their jobs. That is an inevitable development of the process of turning on and tuning in.

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.

The neurogenetic meaning of the cultural revolution is now clear. Neurochemicals are designed to be pursuitist, not escapist. They open the nervous system to the possibilities of future post-terrestrial evolution.

To use your head, you have to go out of your mind.

In the information-communication civilization of the 21st Century, creativity and mental excellence will become the ethical norm. The world will be too dynamic, complex, and diversified, too cross-linked by the global immediacies of modern (quantum) communication, for stability of thought or dependability of behaviour to be successful.