More quotes for my very long list of favorite quotes.

In science it often happens that scientists say, ‘You know that’s a really good argument; my position is mistaken,’ and then they would actually change their minds and you never hear that old view from them again. They really do it. It doesn’t happen as often as it should, because scientists are human and change is sometimes painful. But it happens every day. I cannot recall the last time something like that happened in politics or religion.
-- Carl Sagan

Our old man strode to the front of the lecture hall, shook him by the hand, and said, "My dear fellow, I wish to thank you. I have been wrong these 15 years." That is science at its best. That's the very opposite of faith. That's knowing when you're wrong, and even being pleased to be disproved.
-- Richard Dawkins

Well, I think it's about time we started criticizing faith. The truth is that without this convention of good manners which pervades our society, faith couldn't withstand criticism because it has no resources with which to do the withstanding. How can you defend a position when there are by definition no arguments in its favor?
-- Richard Dawkins

Darwin anticipated problems with his theory. Modern science has answered them. Evolution by Natural Selection has been triumphantly vindicated as fact.
-- Richard Dawkins