This is a learned volume of legal philosophy from the pen of the Professor of jurisprudence at Seton Hall University. Professor Wu addresses himself to such questions as: What is the end of the Law? What is the distinction between natural law, human law, positive law and eternal law? What is teleological jurisprudence and what is conceptualistic jurisprudence? The author is interested in the philosophy and theory of law, but he writes as a Catholic and primarily for Catholic lawyers and law students. He refers often to Thomas Aquinas and his concept of law and to the messages of the various Popes which have a bearing upon the philosophy of law. A book with a limited appeal but one based on sound scholarship.