The Divinity of Doubt

"I can say with relative confidence (because what I'm saying, at least it would seem, has to be true) that there is only one necessary religion that has any merit to the people who inhabit this earth, and that's the Golden Rule: "Do unto others what you would want them to do unto you" (from the Beatitudes of the Sermon on the Mount [Matthew 7:12]). To treat others as you would want them to treat you is the highest, most noble form of human behavior and the basis of all morality."

http://divinityofdoubt.com/excerpt.html

"If we must have religion, the seminal test as to the value and merit of any religion worth its salt has to be not what you believe, but what you do—that is, how you treat your fellow man. "