 The Rule of Law comprises a number of principles of a formal and procedural character, addressing the way in which a community is governed. The formal principles concern the generality, clarity, publicity, stability, and prospectivity of the norms that govern a society. The procedural principles concern the processes by which these norms are administered, and the institutions—like courts and an independent judiciary that their administration requires. On some accounts, the Rule of Law also comprises certain substantive ideals like a presumption of liberty and respect for private property rights. But these are much more controversial (see  section 1  below). And indeed as we shall see there is a great deal of controversy about what the Rule of Law requires. 