Richard Dawkins is, of course, a man to be admired. And I love this answer he gives during a speaking engagement when a young woman asks, "But what if you're wrong?"
That's something that atheists have to deal with quite a bit. The minute somebody finds out that you don't believe in a god (and they do), they have this inexplicable compulsion to defend their beliefs and challenge yours.
Frankly, as the skeptic, I don't need to defend my views. We've already discussed Russell's Teapot, right? Anyway, I'll let Dawkins speak for me on this for now. It's a great soundbite worth sharing, in any case.