Timothy Leary, Ph.D., has been a world-renowned psychologist, a defrocked professor, a relentless champion of brain change, a reputed drug guru, a stand-up philosopher, and a prisoner of the Nixon administration. He has been called "the most dangerous man on the planet." While in prison, at times in solitary confinement, he wrote the first version of this book. ("I must confess at that time I was alienated, a bit draft and given to occasional...