ethical assertion that is obviously true but also appears to arise out of one or more fundamental axioms. For example, the truth of the injunction against *murder is not subject to proof, but serves as the basis for other principles of *personal ethics or *social ethics. Nevertheless, the injunction arises out of the more fundamental command to *love one’s neighbor. . The condition of having only one marital partner at any one time. Monogamy is practically universal in most Western countries.