More trouble is caused in this world by indiscreet answers than by indiscreet questions.

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

A winner rebukes and forgives; a loser is too timid to rebuke and too petty to forgive.

Nice things are done for our own sake, not for the sake of others. The pleasure must reside in the performance, not in the applause. Good deeds are, in a deeper psychological way, a favor to oneself. If this is not grasped, then our whole sense of personal relationships becomes warped.

A winner knows how much he still has to learn, even when he is considered an expert by others; a loser wants to be considered an expert by others before he has learned enough to know how little he knows.

At it's highest level, the purpose of teaching is not to teach—it is to inspire the desire for learning. Once a student's mind is set on fire, it will find a way to provide its own fuel.

We have not passed that subtle line between childhood and adulthood until we have stopped saying 'It got lost,' and say, 'I lost it.'