If I were to give a prize for the single best idea anybody ever had, I'd give it to Darwin for the idea of natural selection - ahead of Newton, ahead of Einstein - because his idea unites the two most disparate features of our universe: the world of purposeless, meaningless matter and motion, particles jostling on the one side, and the world of meaning and purpose, design on the other.

Religions have depended on the relative isolation and ignorance of their flocks, forever and this is all breaking down.

My faith in the expertise of physicists like Richard Feynman, for instance, permits me to endorse—and, if it comes to it, bet heavily on the truth of—a proposition that I don't understand. So far, my faith is not unlike religious faith, but I am not in the slightest bit motivated to go to my death rather than recant the formulas of physics. Watch: E doesn't equal mc2, it doesn't, it doesn't! I was lying, so there!

Virtually every major technological advance in the history of the human species- back to the invention of stone tools and the domestication of fire has been ethically ambiguous. If you want to reason about faith, and offer a reasoned (and reason responsive) defense of faith as an extra category of belief worthy of special consideration, I'm eager to play. I certainly grant the existence of the phenomenon of faith; what I want to see is a reasoned ground for taking faith seriously as a way of getting to the truth , and not, say, just as a way people comfort themselves and each other

Not a single one of the cells that compose you knows who you are, or cares.

What you can imagine depends on what you know.

Cost is always an object - the second law of thermodynamics sees to that