The queen of virtues is the recognition of one's own flaws.

Don't assume that a species is intelligent because it produces intelligent individuals.

If you want creative and successful children, resign yourself to jousting with rebels.

So long as men and women are free, no one is safe. People will be in danger because others can't operate vehicles responsibly or shoot straight. Because physicians are sometimes incompetent and lawyers dishonest. But most of all they will be in danger from ideas. It is the price we willingly pay to be free. Nor would we have it any other way.

If you're right, and nobody really cares what's out there, I wonder whether we're even worth saving.

People who wear their religion on their sleeves talk a lot about going to Sunday school, reading the Bible, and doing good works. And I suppose there's no harm in that. But if I'd gone to the trouble to pull all this together ... and people never paid any attention to it, never bothered to try to find out how the world worked, then I think I'd get annoyed.

The secret to a successful career in virtually any field is good public relations. Forget results. Forget the facts. Perception is all that matters.