Marshall Mcluhan and Dr Timothy Leary

There is no other 1960s intellectual figure whom Timothy Leary came to admire more than Marshall McLuhan. He considered McLuhan’s famous statement – “The medium is the message" -- the most important cultural insight of the ‘60s, a decade saturated with insightful and lasting one-liners, some of the most famous coming from Leary’s own brain. Leary has even credited the world’s foremost media theorist with giving him the pep talk that resulted in his own famous mantra: “Turn On, Tune In, Drop Out.”
In 1964, when LSD was fast becoming a national issue on a trajectory that eventually made it the most vilified drug of the decade, McLuhan’s treatise Understanding Media became (alongside The Tibetan Book of the Dead) the latest roadmap for Leary’s positioning on the subject that had increasingly preoccupied him since he and Richard Alpert had been forced out of Harvard, where they had been doing groundbreaking research on psilocybin, LSD and DMT during the early 1960s.--http://boingboing.net/2014/06/03/timothy-leary-and-marshall-mcl.html