"In general, higher rates of belief in and worship of a creator correlate with higher rates of homicide, juvenile and early adult mortality, STD infection rates, teen pregnancy and abortion in the prosperous democracies. The United States is almost always the most dysfunctional of the developing democracies, sometimes spectacularly so."
From Religion is society's biggest threat
Can't find the quote but I think it was William Blake who said something about someone being in a prison made of religion.
[UPDATE: It was the walls of brothels being made of religion. I knew what I meant.]