  The crucial thought is that there are various bases of moral responsiveness, and these bases are irreducibly plural. A monist could argue that there are different appropriate responses to value, but the monist would have to explain why there are different appropriate responses to the same value. Swanton’s point is that the only explanation the monist has is that different degrees of value merit different responses. According to Swanton, this does not capture what is really going on when we appropriately honor or respect a value rather than promoting it. Anderson and Swanton both argue that the complexity of our responses to value can only be explained by a pluralistic theory.