“The most agonising thing is to drop doubt into a man about his being a reality, three-dimensional - and not some other kind of reality.”

“A library is a different kind of social reality (of the three dimensional kind), which by its very existence teaches a system of values beyond the fiscal.”

“No man is happy without a delusion of some kind. Delusions are as necessary to our happiness as realities..”

“The fates have a way of demanding of a man that he suffer his greatest moments all by himself; being alone seems as often attendant upon reality as being in company is attendant upon flight from reality. (frm "Part of Our Time, Some Monuments and Ruins of the Thirties," about American Communist movement.)”

“LSD was an incredible experience. Not that I’m recommending it for anybody else; but for me it kind of – it hammered home to me that reality was not a fixed thing. That the reality that we saw about us every day was one reality, and a valid one – but that there were others, different perspectives where different things have meaning that were just as valid. That had a profound effect on me.”

“Maybe each human being lives in a unique world, a private world different from those inhabited and experienced by all other humans. . . If reality differs from person to person, can we speak of reality singular, or shouldn't we really be talking about plural realities? And if there are plural realities, are some more true (more real) than others? What about the world of a schizophrenic? Maybe it's as real as our world. Maybe we cannot say that we are in touch with reality and he is not, but should instead say, His reality is so different from ours that he can't explain his to us, and we can't explain ours to him. The problem, then, is that if subjective worlds are experienced too differently, there occurs a breakdown in communication ... and there is the real illness.”