There’s little difference in ethical behavior between the churched and the unchurched. There’s as much pilferage and dishonesty among the churched as the unchurched. And I’m afraid that applies pretty much across the board: religion, per se, is not really life changing. People cite it as important, for instance, in overcoming depression—but it doesn’t have primacy in determining behavior.

George H. Gallup, “Vital Signs,” Leadership, Fall 1987, p. 17