The essay discusses the import of the separability thesis both for legal positivism and for contemporary legal practice. First, the place of the separability thesis in legal positivism will be explored, distinguishing between “standard positivism” and “post‐Hartian positivism.” Then I will consider various kinds of relations between law and morality that are worthy of jurisprudential interest, and explore, from a positivist point of view, what kind of relations between law and morality must be rejected, what kind of such relations should (...) be taken into account, and what kind of such relations are indeed of no import at all. The upshot of this analysis consists in highlighting the distinction between two different dimensions of legal validity (formal validity and material validity respectively), and in pointing out that the positivist separability thesis can apply to formal validity only. On the other hand, when the ascertainment of material validity is at stake, some form of moral reasoning may well be involved (here and now, it is necessarily involved). The essay concludes with some brief remarks on the persisting importance of the positivist jurisprudential project. (shrink)

There are a growing number of general theories of contract law and of other doctrinal areas. These theories are vastly ambitious in their aims. This article explores the nature of these claims, and the motivations for offering such theories, while considering the challenges to success. It is in the nature of theorizing to seek general categories, including doctrinal categories, and to try to discover insights that hold across those categories. However, differences both within a doctrinal area and across legal systems (...) undermine the case for universal and general theories. Also, unjustifiably general theories may distract us from developing properly contextual legal rules, and might even have the unintended effect of legitimating unjust rules. (shrink)