The article briefly discusses the impossibility of a strict formalist or positivist approach to legal adjudication and the necessity and plausibility of a principled approach, according to which it is necessary to resort, explicitly or implicitly, to the principles underlying the positive expressions or sources of law to identify, interpret and apply the law, in easy as well as hard cases. The legitimacy of the principled approach crucially depends on resort to the community\u27s moral principles as embedded in the existing law -- those moral principles which best explain as much as possible of the existing law -- rather than allowing, as Ronald Dworkin has argued, judges to adopt whichever moral principles they subjectively deem best that ...