Teased out through a playful tale about a king who failed in eight ways to make law, Lon L. Fuller's eight principles of the ‘internal morality of law’ became an important contribution to legal philosophy and rule of law theory alike. Moreover, it was Fuller's claim that his principles were not just internal to the enterprise of law, but also ‘moral’ in character, that precipitated a particular kind of ‘natural law versus legal positivism’ contest that continues among legal philosophers today. (...) But as a recent revival of interest in Fuller's thought indicates, his scholarly agenda around the idea of ‘the internal morality of law’ was wider still and deserves revisiting for the range of avenues of inquiry it opens up. (shrink)

The purpose of this essay is to offer a reconstruction of Lon Fuller’s critique of Hart’s legal positivism. I show that contrary to the claims of Fuller’s many critics, one can derive from his work a clear and powerful argument against legal positivism, at least in the guise found in the work of H.L.A. Hart. The essence of the argument is that Fuller’s principles of legality posit that the same considerations that count for law’s excellence are relevant also for the (...) determining what counts as law. I contrast this view with Hart’s legal positivism, which acknowledged that the principles of legality are relevant for law’s excellence, but considered them irrelevant for determining the question what counts as law. I argue that the positivist position is arbitrary, and - a point on which I focus - completely undefended. I draw from this point a more general challenge to Hart’s theory of law (as well as that of many of his followers), namely that though claimed to be a true theory of law, it has no resources to explain why this is so. I argue that Fuller’s theory does not suffer from this problem, because Fuller rejected a staple of contemporary jurisprudence - the separation of conceptual and normative jurisprudence. (shrink)

It has often and correctly been remarked that the Hart-Fuller debate of 1956–1969 set the agenda for Anglo-American jurisprudence in the last half of the twentieth century. The nature of law, of legal obligation, of legal authority, and of law's relation to morality were the questions that debate made central to jurisprudence as we have since practiced it.

In Plato's Laws, the Athenian Stranger claims that the gods will smile only on a city where the law This passage is the origin of the slogan an abbreviation of which forms our phrase From Plato and Aristotle, through John Adams and John Marshall, down to us, no idea has proven more central to Western political and legal culture. Yet the slogan turns on a very dubious metaphor. Laws do not rule, and the is actually a specific form of rule (...) by men (including, nowadays, a few women). These rulers are not slaves to anything. Furthermore, the construction of the sloganhas unfortunate connotations. It suggests that the personal qualities of the human rulers required to secure the rule of law are nothing more than forbearance and disinterestedness—a resolution to stay out of law's way.Footnotes* I have received helpful comments and criticisms from a number of readers, including the other contributors to this volume and participants in the Georgetown University Law Center faculty workshop. In addition, I should like to thank Brian Bix, Ellen Frankel Paul, Fred Schauer, and Wibren van der Burg for extensive written comments on an earlier draft of this essay. (shrink)