And [Asimov]'ll sign anything, hardbacks, softbacks, other people's books, scraps of paper. Inevitably someone handed him a blank check on the occasion when I was there, and he signed that without as much as a waver to his smile — except that he signed: 'Harlan Ellison.

Intuition is the art, peculiar to the human mind, of working out the correct answer from data that is, in itself, incomplete or even, perhaps, misleading.

Self-education is, I firmly believe, the only kind of education there is.

All normal life, Peter, consciously or otherwise, resent domination. If the domination is by an inferior, or by a supposed inferior, the resentment becomes stronger.

A scientist is as weak and human as any man, but the pursuit of science may ennoble him even against his will.

No vision of God and heaven ever experienced by the most exalted prophet can, in my opinion, match the vision of the universe as seen by Newton or Einstein

Any book worth banning is a book worth reading.