Because, you see, God—whatever anyone chooses to call God—is one's highest conception of the highest possible. And whoever places his highest conception above his own possibility thinks very little of himself and his life. It's a rare gift, you know, to feel reverence for your own life and to want the best, the greatest, the highest possible, here, now, for your very own. To imagine a heaven and then not to dream of it, but to demand it.
Ayn Rand, We the Living
atheism