It was one of those evenings when men feel that truth, goodness and beauty are one. In the morning, when they commit their discovery to paper, when others read it written there, it looks wholly ridiculous.

I have always found that Angels have the vanity to speak of themselves as the only wise.

Our vanity makes us exaggerate the importance of human life; the individual is nothing; Nature cares only for the species.

Procrustes in modern dress, the nuclear scientist will prepare the bed on which mankind must lie; and if mankind doesn’t fit—well, that will be just too bad for mankind. There will have to be some stretching and a bit of amputation—the same sort of stretching and amputations as have been going on ever since applied science really got going into its stride, only this time they will be a good deal more drastic than in the past. These far from painless operations will be directed by highly centralized totalitarian governments.

We are all geniuses up to the age of ten.

Defined in psychological terms, a fanatic is a man who consciously over-compensates a secret doubt.

Knowledge is porportionate to being... You know in virtue of what you are.