"If you are serious about your religion, if you really wish to commit yourself to the spiritual quest, you must learn how to use psychochemicals. Drugs are the religion of the twenty-first century. Pursuing the religious life today without using psychedelic drugs is like studying astronomy with the naked eye because that's how they did it in the first century A.D., and besides telescopes are unnatural."

“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.”

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

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