▁and ▁his ▁colle ague , ▁Richard ▁Al pert ▁( who ▁later ▁became ▁known ▁as ▁Ram ▁D ass ), ▁were ▁fired ▁from ▁Harvard ▁University ▁in ▁May ▁ 1 9 6 3 . ▁Most ▁people ▁first ▁heard ▁of ▁psych ed el ics ▁after ▁the ▁Harvard ▁sc andal . ▁ ▁Le ary ▁believed ▁that ▁L SD ▁showed ▁potential ▁for ▁th era pe ut ic ▁use ▁in ▁psych iat ry . ▁He ▁used ▁L SD ▁himself ▁and ▁developed ▁a ▁philosophy ▁of ▁mind ▁expansion ▁and ▁personal ▁truth ▁through ▁L SD . ▁After ▁leaving ▁Harvard , ▁he ▁continued ▁to ▁public ly ▁promote ▁the ▁use ▁of ▁psych ed el ic ▁dru gs ▁and ▁became ▁a ▁well - known ▁figure ▁of ▁the ▁counter c ulture ▁of ▁the ▁ 1 9 6 0 s . ▁He ▁popular ized ▁catch phr ases ▁that ▁promoted ▁his ▁philosophy , ▁such ▁as ▁" turn ▁on , ▁t une ▁in , ▁drop ▁out ", ▁" set ▁and ▁setting ", ▁and ▁" th ink ▁for ▁yourself ▁and ▁question ▁authority ". ▁He ▁also ▁wrote ▁and ▁spoke ▁frequently ▁about ▁trans human ist ▁concepts ▁of ▁space ▁migration , ▁intelligence ▁increase , ▁and ▁life ▁extension ▁( S MI ² LE ). ▁Le ary ▁developed ▁the ▁eight - circ uit ▁model ▁of ▁conscious ness ▁in ▁his ▁book ▁Ex o - P s ych ology ▁( 1 9 7 7 ) ▁and ▁gave ▁lect ures , ▁occasionally ▁b illing ▁himself ▁as ▁a ▁" perform ing ▁phil os opher ". ▁ ▁During ▁the ▁ 1 9 6 0 s ▁and ▁ 1 9 7 0