In contrast to describing what constitutions are, a prescriptive approach addresses what a constitution should be. As presented by Canadian philosopher Wil Waluchow, constitutionalism embodies "the idea... that government can and should be legally limited in its powers, and that its authority depends on its observing these limitations. This idea brings with it a host of vexing questions of interest not only to legal scholars, but to anyone keen to explore the legal and philosophical foundations of the state."[6] One example of this prescriptive approach was the project of the National Municipal League[7] to develop a model state constitution.[8]