Every nation has its own rules of behavior. If a particular action happens to fit in with the rules of, shall we say, our own society, we describe it as a right, or a moral, or a just action. And the other way around, if the rules are violated, then we say that the action is wrong, unjust, or evil. This means, of course, that a model code is something relative to the conventions of one's own society. It also means that a discussion based on moral issues isn't likely to be successful in settling an argument between different communities with different rules of behavior. Now this is a conclusion amply born out by the facts of history.