While religious people are not generally mad, their core beliefs absolutely are. This is not surprising, since most religions, have merely canonised a few products of ancient ignorance and derangement and passed them down to us as if they were primordial truths. This leave billions of us believing what no sane person could believe on his own. In fact, it is difficult to imagine a set of beliefs more suggestive of mental illness than those that lie at the heart of many of our religious traditions.
~ Sam Harris (born: 1967-01-01 age: 45)  The End Of Faith, Religion, Terror and the Future of Reason page 67.