" Shermer does an excellent job of evaluating the evolutionary origins of morality, exhibiting strong command of the minutia within evolutionary theory, specifically as it relates to group selection, alrtuism and the natural-cultural shift over the last ten thousand years. While he is strong in the scientific fields, his raw philosophy needs fleshing out. Without sufficient rationale he attempts to overlay these evolutionary truths into a prescriptive model for morality, making a valiant effort in doing so, but without fulfilling his goal. "
— Josh, 1/10/2014