Think for yourself and question authority.

My advice to people today is as follows: 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.

You can always pick up your needle and move to another groove.

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

Women who seek to be equal with men lack ambition.

Learning how to operate a soul figures to take time.

Science is all metaphor.

There are three side effects of acid: enhanced long-term memory, decreased short-term memory, and I forget the third.

I’ve left specific instructions that I do not want to be brought back during a Republican administration.

If you don’t like what you’re doing, you can always pick up your needle and move to another groove.

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.

You’re only as young as the last time you changed your mind.

Think for yourself and question authority.

Turn on, Tune in, Drop out.

We are dealing with the best-educated generation in history. But they’ve got a brain dressed up with nowhere to go.

The universe is an intelligence test.