The evolution of the brain not only overshot the needs of prehistoric man, it is the only example of evolution providing a species with an organ which it does not know how to use.

One may not regard the world as a sort of metaphysical brothel for emotions.

Hitherto man had to live with the idea of death as an individual; from now onward mankind will have to live with the idea of its death as a species.

The prerequisite of originality is the art of forgetting, at the proper moment, what we know.

There is only one prospect worse than being chained to an intolerable existence: The nightmare of a botched attempt to end it.

One question that people always ask at home is never asked here: "What happened to Communism in Russia?" Everybody yawns when a visitor brings it up, because the answer is so obvious to every Russian. The answer is that there never was Communism in Russia; there were only communists.

Honor is decency without vanity.