Timothy Leary

Timothy Francis Leary (October 22, 1920 – May 31, 1996) was an American psychologist, philosopher, and writer known for advocating the exploration of the therapeutic potential of psychedelic drugs under controlled conditions. Leary conducted experiments under the Harvard Psilocybin Project during American legality of LSD and psilocybin, resulting in the Concord Prison Experiment and the Marsh Chapel Experiment. Timothy Leary left Harvard University after Richard Alpert was fired for giving psilocybin to an undergraduate.