Very interesting op-ed in today's New York Times: Slavoj Zizek calls athiests "Defenders of the Faith":
Fundamentalists do what they perceive as good deeds in order to fulfill God's will and to earn salvation; atheists do them simply because it is the right thing to do. Is this also not our most elementary experience of morality? When I do a good deed, I do so not with an eye toward gaining God's favor; I do it because if I did not, I could not look at myself in the mirror. A moral deed is by definition its own reward. David Hume, a believer, made this point in a very poignant way, when he wrote that the only way to show true respect for God is to act morally while ignoring God's existence.
Amayn.