Book excerpt: A common refrain against atheism and secular humanism is that without belief in God, "everything is permitted." Walter Sinnott-Armstrong dismantles this argument and argues instead that God is not only not essential to morality, but that our moral behavior should be seen as utterly independent of religion. This short, accessible book is on a major aspect of the arguments against atheism and will interest those intrigued by the "new atheism" (Harris, Dawkins, etc).