As is well known, all collectors are prepared to steal or murder if it is a question of getting another piece for their collection; but this does not lower their moral character in the least.

All the year round there is spring, all through life is youth; there is always something which may flower.

A guy wanted the vet to cut his dog's tail off. The vet asked why. Well, my mother in law is visiting next month and I want to eliminate any possible indication that she is welcome.

A short life is better for mankind, for a long life would deprive man of his optimism.

My dear Miss Glory, Robots are not people. They are mechanically more perfect than we are, they have an astounding intellectual capacity, but they have no soul.

Everyone has the best of feelings towards mankind in general, but not towards the individual man. We'll kill men, but we want to save mankind. And that isn't right, your Reverence. The world will be an evil place as long as people don't believe in other people.

Robots of the world, you are ordered to exterminate the human race. Do not spare the men. Do not spare the women. Preserve only the factories, railroads, machines, mines, and raw materials. Destroy everything else. Then return to work. Work must not cease.