  There is agreement that theories play some kind of systematizing role, and that one function is to examine important concepts relevant to morality and moral practice and the connections, if any, between them. For example, one very common view in the middle of the 20th century, attributed to John Rawls, was to view moral theory as primarily interested in understanding the ‘right’ and the ‘good’ and connections between the two (Rawls). Priority claims are often a central feature in the systematizing role of moral theory. Related to this is the issue of explanatory, or theoretical, depth. That is, the deeper the explanation goes, the better.