"We always have urged people: Don't take LSD unless you are very well prepared, unless you are specifically prepared to go out of your mind. Don't take it unless you have someone that's very experienced with you to guide you through it. And don't take it unless you are ready to have your perspective on yourself and your life radically changed, because you're gonna be a different person, and you should be ready to face this possibility."

“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.”

“People use the word "natural" … What is natural to me is these botanical species which interact directly with the nervous system. What I consider artificial is four years at Harvard, and the Bible, and Saint Patrick's cathedral, and the sunday school teachings.”

“Timothy Leary Video and Audio”

“Think for yourself and question authority.”

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

“The only abuse of drugs is the control of drugs by other people. ...The only control is self-control.”