A professor is someone who talks in someone else's sleep.

You owe it to all of us all get on with what you're good at.

Among those whom I like or admire, I can find no common denominator, but among those whom I love, I can: all of them make me laugh.

Some writers confuse authenticity, which they ought always to aim at, with originality, which they should never bother about.

Those who hate to go to bed fear death; those who hate to get up fear life.

No person can be a great leader unless he takes genuine joy in the successes of those under him.

We are lived by powers we pretend to understand.