There has been no progress in 60,000 years in reducing the psychedelic experience to a known quantity. It is as terrifying, as awesome, as ecstatic, as irreducible to us as it was to them.

Where psychedelics comes together with that is that it's going to require a transformation of human language and understanding to stop the momentum of the historical process, to halt nuclear proliferation, germ warfare, infantile 19th century politics, all these things. It cannot be accomplished through a frontal assault upon it by political means.

...the mind is more powerful than any imaginable particle accelerator, more sensitive than any radio receiver or the largest optical telescope, more complete in its grasp of information than any computer: the human body- its organs, its voice, its powers of locomotion, and its imagination- is a more-than-sufficient means for the exploration of any place, time or energy level in the universe.

Impressionism is simply twenty minutes into LSD.

Television, while chemically non-invasive, nevertheless is every bit as addicting and physiologically damaging as any other drug.

The numinous depth of the mystery that seems to have called us out of the animal mind is completely impenetrable to modern analysis.

This unique strategy that the advanced primates created, the strategy of using language to bind time, is what the process we call 'civilization' has been all about.