There is in all animals a sense of duty that man condescends to call instinct.

I like friends who, when you tell them you need a moment alone, know enough not to stray too far.

If a rabbit defined intelligence the way man does, then the most intelligent animal would be a rabbit, followed by the animal most willing to obey the commands of a rabbit.

If you allow people to treat you like a doormat, they will expect you to say WELCOME.

Sometimes, in a moral struggle, we discover the right thing to do - just as, on some cold day long ago, we discovered mittens pinned to our coat sleeve.

Eventually you realize that your whole life up to now has been preparation, and you begin to suspect that the rest might be preparation, too.

After 5,000 years of recorded human history, you wonder, what part of 2,000,000 sunrises doesn't a pessimist understand?