This points to a common way of understanding rights and duties. Philosophers will sometimes claim that rights and duties are correlative. This is to say that my rights establish your duties and my duties correspond to the rights of others. The principle-based tradition focuses on duties, which can be thought of as establishing the ethical limits of my behavior. From my perspective, duties are what I own to others. Other people have certain claims upon my behavior: they have, in other words, certain rights against me