Human thoughts and emotions emerge from exceedingly complex interconnections of physical entities within the brain. An atheist ... is somebody who believes there is nothing beyond the natural, physical world, no supernatural creative intelligence lurking behind the observable universe... If there is something that appears to lie beyond the natural world ... we hope eventually to understand it and embrace it within the natural. As ever when we unweave a rainbow, it will not become less wonderful.
-- The God Delusion by Richard Dawkins, 2006