Abstract
In Sick Societies, Robert Edgerton argues that the longstanding principle of cultural relativism is misguided. In its place, he claims, we need to evaluate both traditional and modern societies in terms of their commitment to providing a satisfying ?quality of life? for their members. This essay takes up the merits of Edgerton's thesis by using primate data to analyze and consider human nature, the adaptation thesis, the nature of culture, and, on purely hominoid grounds, the ?good? society for humankind.