The really important facts were that spatial relationships had ceased to matter very much and that my mind was perceiving the world in terms of other than spatial categories. At ordinary times the eye concerns itself with such problems as where? — how far? — how situated in relation to what? In the mescaline experience the implied questions to which the eye responds are of another order. Place and distance cease to be of much interest. The mind does its perceiving in terms of intensity of existence, profundity of significance, relationships within a pattern.

If the men of the Middle Ages... lived in filth and discomfort, it was not for any lack of ability to change their mode of life; it was because they chose to live this way, because filth and discomfort fitted in with their principles and prejudices, political, moral, and religious.... It was in the power of medieval... craftsmen to create armchairs and sofas that might have rivaled in comfort those of today

The vast majority of human beings are not interested in reason or satisfied with what it teaches.

Art, I suppose, is only for beginners, who have made up in their minds to be content with symbols rather than with what they signify, with the elegantly composed recipe in lieu of actual dinner.

Civilization is sterilization.

It is only when we have renounced our preoccupation with "I," "me," "mine," that we can truly possess the world in which we live. Everything, provided that we regard nothing as property. And not only is everything ours; it is also everybody else's.

The question of the next generation will not be one of how to liberate the masses, but rather, how to make them love their servitude.