Abstract
Before going any further, something should be said about the word "natural" that appears in my title. Miller distinguishes two ways in which rights can be called natural, and holds that Aristotle recognizes natural rights in one sense but not the other. First, "natural" can be contrasted with "conventional," "legal," and "customary." This is the familiar distinction the Greeks made between physis and nomos. Aristotle makes use of the distinction when he contrasts natural and legal justice. According to Miller, Aristotle has a theory of natural rights in the sense that he has a theory of natural justice that serves as the basis for his recognition of rights. It is naturally and not merely legally just that certain people be treated in certain ways; they have a valid claim, based on natural justice, to such treatment, and this claim is valid whether or not it is recognized by a legal system. On the other hand, the term "natural right" can also be used in a second way, to designate a right that is possessed in a state of nature, that is, at a time prior to the existence of political communities. Miller holds that Aristotle does not recognize natural rights of this sort, but as he points out, this would not prevent Aristotle from recognizing natural rights in the first sense. The natural rights Miller finds in Aristotle are not possessed by all people at all times; rather, his thesis is that when the polis does come into existence, Aristotelian natural justice requires that political systems be structured in ways that recognize the rights of certain human beings. More specifically, when the polis arises, certain people have a natural right to hold various political offices and to own property.