The central issue that the author ponders is the question of whether law in its normative power depends on morality. In searching for an answer, the author turns to an analysis of theapproaches proposed by famous theorists and philosophers of law in their works, representing various currents of law understanding. Among them: J. Waldron, H. L. A. Hart, M. Greenberg,H. Kelsen, G. Radbruch, J. Raz, J. Rawls, A. Sen, J. Finnis and others. The author concludes that law purports to prohibit, require, and authorize even when its normsare unenforced, selectively enforced, or in some other way under-enforced. Legal reasons, or legal obligations, where they exist and apply, apply equally to all norms and rules valid in the legalsystem in question, regardless of how strenuously or laxly they are enforced. Legal normativity in general, and legal propositions in particular, do not, by their nature, reduceto or equate to propositions of another type, nor do legal propositions, by their nature, purport to be propositions of another type. The contrast is with views that propositions of what the law requires is just a prediction ofwhat courts will do, or purports to be a claim of what morality requires, or is in fact a statement of a certain kind of moral truth. For the person who accepts the law, the sort of reason the law givesis a legal reason – a reason that derives from law, just as one might have reasons that derive from etiquette, fashion, the game of chess, or a certain kind of cooking. There are reasons internal toa particular practice or normative system.