AbstractThis essay argues for a conception of law as a normative practice, a conception which departs from traditional, particularly positivist, conceptions. It is argued that Dyzenhaus's book (Dyzenhaus 1991), with its fascinating case study of unjust judicial decisions in South Africa, makes a compelling argument for such a conception. However, the essay takes issue with Dyzenhaus for romanticising the liberal tradition, and inflating the power of law and legal theory. Nonetheless, the essay agrees that positivist accounts tend to downplay the emancipatory promise of law, and ends with some remarks about promise.