American politicians often claim a moral imperative to ensure quality affordable health care to all Americans, but as Donald Munro points out, leaders rarely outline the content of this moral standard and whether it can be applied to all societies. Munro turns to recent research in cognitive science and evolutionary psychology to identify the ethical principles that help humans succeed as individuals and as cooperative groups. He then applies these principles to two practical problems affecting contemporary China: the moral complexity of responding to global warming and the lack of consistency within the Chinese legal system.