Alasdair MacIntyre on Social Ethics or None at All
After Virtue (University of Notre Dame Press: 1984), p. 23.
A moral philosophy ... characteristically presupposes a sociology. For every moral philosophy offers explicitly or implicitly at least a partial conceptual analysis of the relationship of an agent to his or her reasons, motives, intentions and actions, and in so doing generally presupposes some claim that these concepts are embodied or at least can be in the real social world. Even Kant, who sometimes seems to restrict moral agency to the inner realm of the noumenal, implies otherwise in his writings on law, history and politics. Thus it would generally be a decisive refutation of a moral philosophy to show that moral agency on its own account of the matter could never be socially embodied; and it also follows that we have not yet fully understood the claims of any moral philosophy until we have spelled out what its social embodiment would be.