When discussing O. W. Holmes’s answer to the question What constitutes the law? Morton White underlines the fact that Holmes’s inquiry didn’t focus on developing the concept of law. White states: ‘...Holmes said little in The Path of the Law about the notion of legal authority, perhaps because he was interested not in what he called a “useless quintessence of all legal systems” but in “an accurate anat- omy of one”’. Such ambition (or lack of ambition) is charac- teristic of many pragmatic enterprises in the field of jurispru- dence. However, sometimes the opposition between legal pragmatism and other legal theories is built upon a refer- ence to the notion of the ‘nature’ or ‘essence’ of law. Many legal philosophers who ai...