Creativity is intelligence having fun.

Thinking is hard work; that's why so few do it.

Any brief military advantage the USA might gain with nuclear weapons would be offset by political and psychological losses and damage to American prestige. The United States might even touch off a worldwide armaments race.

It should be possible to explain the laws of physics to a barmaid.

Concern for man himself must always constitute the chief objective of all technological effort

Even the scholars in various lands have been acting as if their brains had been amputated.

I make it a rule not to clutter my mind with simple information that I can find in a book in five minutes.