I was replying to someone in a theological debate and looking up a C.S. Lewis quote that I remembered reading awhile back. It is from an essay collection called God in the Dock. It is in chapter four, Answers to Questions on Christianity.
Which of the religions of the world gives to its followers the greatest happiness?
Which of the religions of the world gives to its followers the greatest happiness? While it lasts, the religion of worshipping oneself is the best.
I doubt this is true. I have seen many a self-satisfied idolators of self (hell, I was one, I probably still am) they never look very happy to me. Drunk, maybe, not happy.