From my first published paper in 1946, my obsession has been to objectify inner experiences, to demystify the software of human existence. How? By relating changes in external behavior, systematically and lawfully, to changes in the brain.

At the peak of his scientific triumphs, Newton became a 'head,' a student of the inner spiritual world - or in modern terms, a neurologician. Modern physicists do not dwell on this dramatic life-change in their hero.

In pursuing my fervent goal of relating external stimuli to reports about internal-neural change, we were, paradoxically enough, following the most orthodox tradition in psychology.

Timothy Leary Quotes