The three hardest tasks in the world are neither physical feats nor intellectual achievements, but moral acts: to return love for hate, to include the excluded, and to say, 'I was wrong'.

The real danger is not that computers will begin to think like men, but that men will begin to think like computers.

A person is either himself or not himself; is either rooted in his existence or is a fabrication; has either found his humanhood or is still playing with masks and roles and status symbols. And nobody is more aware of this difference (although unconsciously) than a child. Only an authentic person can evoke a good response in the core of the other person; only person is resonant to person.

Nuclear war is inevitable, says the pessimists; Nuclear war is impossible, says the optimists; Nuclear war is inevitable unless we make it impossible, says the realists.

People who think they're generous to a fault usually think that's their only fault.

It may be true that the weak will always be driven to the wall; but it is the task of a just society to see that the wall is climbable.

The primary purpose of a liberal education is to make one's mind a pleasant place in which to spend one's leisure.