Abstract
In regard to its source there are three possibilities. A person may be subjected to a demand from some other person or social group, from some factor within himself such as his "long-run" or "most inclusive" interests, or some "higher" part of the self, or the self's need of integration or wholeness, from some superhuman cosmic power, a deity or an impersonal cosmic moral principle. Naturalistic philosophers tend to interpret the demand as proceeding from either the social group or from the long-run or inclusive interests of the self. These explanations, however, soon run into difficulties. If moral obligation is the demand of a social group then which group is it whose demands should be recognized as obligatory --the family, local community, nation, or humanity? Does humanity constitute a group that makes recognizable demands? Or if our moral obligation is to seek fulfillment of our own most inclusive or long-run interests then do such private interests never clash with the public interest? If they do then is it our moral obligation in such cases to seek our private interests above the weightier interests of society? Or if private and public interests never clash then what guarantees this wonderful harmony?