The Christian idea of a perfect heaven that is something other than a non-existence is a contradiction in terms.

Nothing is more dreadful than a cold, unimpassioned indulgence. And love infallibly becomes cold and unimpassioned when it is too lightly made.

The worst enemy of life, freedom and the common decencies is total anarchy; their second worst enemy is total efficiency.

You shall know the truth, and the truth shall make you mad.

All our science is just a cookery book, with an orthodox theory of cooking that nobody's allowed to question, and a list of recipes that mustn't be added to except by special permission from the head cook.

Today we are faced, I think, with the approach of what may be called the ultimate revolution, the final revolution, where man can act directly on the mind-body of his fellows.

Wild inside; raging, writhing—yes, "writhing" was the word, writhing with desire. But outwardly he was hopelessly tame; outwardly—baa, baa, baa.