No one of intelligence resents the inevitable.

Even by the twenty-second century, no way had yet been discovered of keeping elderly and conservative scientists from occupying crucial administrative positions. Indeed, it was doubted if the problem ever would be solved.

When all else failed, you had to rely on eyeball intrumentation.

The goal of the future is full unemployment, so we can play. That's why we have to destroy the present politico-economic system.

A faith that cannot survive collision with the truth is not worth many regrets.

The crossing of space ... may do much to turn men's minds outwards and away from their present tribal squabbles. In this sense, the rocket, far from being one of the destroyers of civilisation, may provide the safety-value that is needed to preserve it.

Good morning, Dr. Chandra. This is Hal. I am ready for my first lesson.