When Harvard chaplain Greg Epstein heard that honesty came out on top, it made a lot of sense to him. As author of “Good Without God: What a Billion Nonreligious People Do Believe,” Epstein has spent a considerable amount of time thinking about what nonbelievers actually hold to be true about tolerance, community, and morality.

“Of course these are people who are interested in honesty and integrity,” Epstein told The Huffington Post. “[Because if you’re coming out as non-religious], then you probably feel a very strong pull to tell the truth and to be honest with yourself and others about who you are.” ...