As explained in the next sub-section, Dworkin’s methodological view incorporates some prescriptive elements. But one prominent advocate of an exclusively prescriptive project is Neil MacCormick (MacCormick 1985; see also Campbell 1996; Murphy 2001; Postema 1989; Schauer 1996; Waldron 2001). MacCormick argues that there are compelling normative arguments in favor of adopting a positivist conception of law. In particular, he suggests that values like autonomy and freedom of conscience demand that