Paul Mishkin was a colleague and a teacher to us, and we each esteem him as a master craftsman of the law: learned, wise, and farsighted. To reread his publications is to enter a world of clarity and integrity, in which no word is wasted and insight is deep. Early in his career Mishkin saw that the law could be apprehended from two distinct and in part incompatible perspectives: from the internal perspective of a faithful practitioner and from the external perspective of the general public. If the social legitimacy of the law as a public institution resides in the latter, the legal legitimacy of the law as a principled unfolding of professional reason inheres in the former.\u27 Mishkin came to believe that although the law required both for...