Morality, then, is still something larger than our inherited moral sense, and the new science of the moral sense does not make moral reasoning and conviction obsolete.There could be no strictly scientific account of morality, if only for the simple reason that in order to know what falls under the proper domain of the moral, we must make a moral judgment. The question is, What is a science of morality a science of? And there couldn't be a scientific answer to that question. Luckily, that does not mean there is no answer.
I devote a chapter of The Secular Conscience ("Darwin Made Me Do It") to these issues. Maybe I'll have a chance to discuss them with Steve during our trip into the Amazon this May.