Timothy Leary

Timothy Francis Leary (October 22, 1920 – May 31, 1996) was an American psychologist and writer known for advocating psychedelic drugs. 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. Leary and his associate Richard Alpert were fired by Harvard University amid controversy surrounding such drugs (although some have claimed that the experiments produced useful data).