Science fiction writers foresee the inevitable, and although problems and catastrophes may be inevitable, solutions are not.

There is nothing frightening about an eternal dreamless sleep. Surely it is better than eternal torment in Hell and eternal boredom in Heaven.

The human brain, then, is the most complicated organization of matter that we know.

Intelligence is an accident of evolution, and not necessarily an advantage.

After years of finding mathematics easy, I finally reached integral calculus and came up against a barrier. I realized that this was as far as I could go, and to this day I have never successfully gone beyond it in any but the most superficial way.

You can prove anything you want by coldly logical reason---if you pick the proper postulates.

Any teacher that can be replaced by a computer should be replaced by a computer.