The severest test of character is not so much the ability to keep a secret as it is, when the secret is finally out, to refrain from disclosing that you knew it all along.

Ninety per cent of the world's woe comes from people not knowing themselves, their abilities, their frailties, and even their real virtues. Most of us go almost all the way through life as complete strangers to ourselves - so how can we know anyone else?

Sincerity that thinks it is the sole possessor of the truth is a deadlier sin than hypocrisy, which knows better.

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

Nothing is as easy to make as a promise this winter to do something next summer; this is how commencement speakers are caught.

A university is not, primarily, a place in which to learn how to make a living; it is a place in which to learn how to be more fully a human being, how to draw upon one's resources, how to discipline the mind and expand the imagination; how to make some sense out of the big world we will shortly be thrown into.

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.