I recommend the book Moral Tribes by Joshua Greene, which treats this topic at book length. https://www.amazon.com/Moral-Tribes-Emotion-Reason-Between/dp/01431

I recommend the book Moral Tribes by Joshua Greene, which treats this topic at book length. https://www.amazon.com/Moral-Tribes-Emotion-Reason-Between/dp/0143126059/ref=sr_1_1?ie=UTF8&qid=1475600859&sr=8-1&keywords=moral+tribes https://www.amazon.com/Moral-Tribes-Emotion-Reason-Between/d...