By the time a man asks you for advice, he has generally made up his mind what he wants to do, and is looking for confirmation rather than counseling.

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.

Those obsessed with health are not healthy; the first requisite of good health is a certain calculated carelessness about oneself.

The most important thing in an argument, next to being right, is to leave an escape hatch for your opponent, so that he can gracefully swing over to your side without too much apparent loss of face.

Why are we willing to accept a new mathematical formula we don't understand as the product of a brilliant mind, while rejecting a new art form we don't understand as the product of a deranged mind?

By the time a man asks you for advice, he has generally made up his mind what he wants to do, and is looking for confirmation rather than counseling.

Skepticism is not an end in itself; it is a tool for the discovery of truths.