  Both Mill and Raz accept versions of the harm principle. But they accept it not as a limit on perfectionist politics, but rather as a principle that guides the proper promotion of the good. Their political theories are examples of perfectionist liberalism and their discussions of the harm principle show how perfectionist politics can be supportive of individual liberty. It can be objected, however, that the defense of individual liberty provided by perfectionist liberalism is insufficient. Recall that on the perfectionist view discussed here autonomy is an aspect of a good human life. It is not a separate norm. A strong and uncompromising defense of the harm principle, it may be thought, must be based on a different understanding of the value of autonomy, one that holds that the autonomy of persons cannot be infringed even when doing so is, all things considered, in their best interests. Autonomy, on this view, is a sovereign right, not an ideal to be promoted (Feinberg 1989). The nature and plausibility of this alternative view of autonomy, however, are not matters that can be taken up  here.[15]