Is there such a thing as an objective law of morality? Natural law theorists maintain that there is, and Natural Law probes the history and implications of this powerful concept. Tracing the development of natural law from ancient times to the present, the book also examines the leading figures, transitions, and turning points in the idea's evolution, and brings a natural law approach to contemporary issues such as abortion, homosexuality, and assisted suicide.

The theory of natural law grounds human laws in the universal truths of God’s creation. Until very recently, lawyers in the Western tradition studied natural law as part of their training, and the task of the judicial system was to put its tenets into concrete form, building an edifice of positive law on natural law’s foundations. Although much has been written about natural law in theory, surprisingly little has been said about how it has shaped legal practice. Natural Law in Court asks how lawyers and judges made and interpreted natural law arguments in England, Europe, and the United States, from the beginning of the sixteenth century to the American Civil War. R. H. Helmholz sees a remarkable consistency in how English, Continental, and early American jurisprudence understood and applied natural law in cases ranging from family law and inheritance to criminal and commercial law. Despite differences in their judicial systems, natural law was treated across the board as the source of positive law, not its rival. The idea that no person should be condemned without a day in court, or that penalties should be proportional to the crime committed, or that self-preservation confers the right to protect oneself against attacks are valuable legal rules that originate in natural law. From a historical perspective, Helmholz concludes, natural law has advanced the cause of justice.

Knowing the Natural Law traces the thought of Aquinas from an understanding of human nature to a knowledge of the human good, from there to an account of ought-statements, and finally to choice, which issues in human actions. The much discussed article on the precepts of the natural law (I-II, 94, 2) provides the framework for a natural law rooted in human nature and in speculative knowledge. Practical knowledge is itself threefold: potentially practical knowledge, virtually practical knowledge, and fully practical knowledge.

Originally published in German in 1936, The Natural Law is the first work to clarify the differences between traditional natural law as represented in the writings of Cicero, Aquinas, and Hooker and the revolutionary doctrines of natural rights espoused by Hobbes, Locke, and Rousseau. Beginning with the legacies of Greek and Roman life and thought, Rommen traces the natural law tradition to its displacement by legal positivism and concludes with what the author calls "the reappearance" of natural law thought in more recent times. In seven chapters each Rommen explores "The History of the Idea of Natural Law" and "The Philosophy and Content of the Natural Law." In his introduction, Russell Hittinger places Rommen's work in the context of contemporary debate on the relevance of natural law to philosophical inquiry and constitutional interpretation. Heinrich Rommen (1897–1967) taught in Germany and England before concluding his distinguished scholarly career at Georgetown University. Russell Hittinger is William K. Warren Professor of Catholic Studies and Research Professor of Law at the University of Tulsa.

Aristotle and Natural Law lays out a new theoretical approach which distinguishes between the notions of 'interpretation,' 'appropriation,' 'negotiation' and 'reconstruction' of the meaning of texts and their component concepts. These categories are then deployed in an examination of the role which the concept of natural law is used by Aristotle in a number of key texts. The book argues that Aristotle appropriated the concept of natural law, first formulated by the defenders of naturalism in the 'nature versus convention debate' in classical Athens. Thereby he contributed to the emergence and historical evolution of the meaning of one of the most important concept in the lexicon of Western political thought. Aristotle and Natural Law argues that Aristotle's ethics is best seen as a certain type of natural law theory which does not allow for the possibility that individuals might appeal to natural law in order to criticize existing laws and institutions. Rather its function is to provide them with a philosophical justification from the standpoint of Aristotle's metaphysics.

This book proposes a rather novel legal-philosophical approach to understanding the intersection between law and morality. It does so by analyzing the conditions for the existence of a juridical domain of natural law from the perspective of the tradition of Thomistic juridical realism. In order to highlight the need to reconnect with this tradition in the context of contemporary legal philosophy, the book presents various other recent jurisprudential positions regarding the overlap between law and morality. While most authors either exclude a conceptual necessity for the inclusion of moral principles in the nature of law or refer to the purely moral status of natural law at the foundations of the legal phenomenon, the book seeks to elucidate the essential properties of the juridical status of natural law. In order to establish the juridicity of natural law, the book explores the relevant arguments of Thomas Aquinas and some of his main commentators on this issue, above all Michel Villey and Javier Hervada. It establishes that Thomistic juridical realism observes the juridical phenomenon not only from the perspective of legal norms or subjective individual rights, but also from the perspective of the primary meaning of the concept of right (ius), namely, the just thing itself as the object of justice. In this perspective, natural rights already possess a fully juridical status and can be described as natural juridical goods. In addition, from the viewpoint of Thomistic juridical realism, we can identify certain natural norms or principles of justice as the juridical title of these rights or goods. The book includes an assessment of the prospective points of dialogue with the other trends in Thomistic legal philosophy as well as with various accounts of the nature of law in contemporary legal theory.

Natural law, according to Thomas Aquinas, has its foundation in the evidence and operation of natural, human reason. Its primary precepts are self-evident. Awareness of these precepts does not presuppose knowledge of, or even belief in, the existence of God. The most interesting criticisms of Thomas Aquinas’s natural-law teaching in modern times have been advanced by the political philosopher Leo Strauss and his followers. The purpose of this book is to show that these criticisms are based on misunderstandings and that they are inconclusive at best. Thomas Aquinas’s natural-law teaching is fully rational. It is accessible to man as man.

Translation of: Dio e la legge naturale: una rilettura di Tommaso d'Aquino.

Has Hobbesian moral and political theory been fundamentally misinterpreted by most of his readers? Since the criticism of John Bramhall, Hobbes has generally been regarded as advancing a moral and political theory that is antithetical to classical natural law theory. Kody W. Cooper challenges this traditional interpretation of Hobbes in Thomas Hobbes and the Natural Law. Hobbes affirms two essential theses of classical natural law theory: the capacity of practical reason to grasp intelligible goods or reasons for action and the legally binding character of the practical requirements essential to the pursuit of human flourishing. Hobbes’s novel contribution lies principally in his formulation of a thin theory of the good. This book seeks to prove that Hobbes has more in common with the Aristotelian-Thomistic tradition of natural law philosophy than has been recognized. According to Cooper, Hobbes affirms a realistic philosophy as well as biblical revelation as the ground of his philosophical-theological anthropology and his moral and civil science. In addition, Cooper contends that Hobbes's thought, although transformative in important ways, also has important structural continuities with the Aristotelian-Thomistic tradition of practical reason, theology, social ontology, and law. What emerges from this study is a nuanced assessment of Hobbes’s place in the natural law tradition as a formulator of natural law liberalism. This book will appeal to political theorists and philosophers and be of particular interest to Hobbes scholars and natural law theorists.

This first English translation of Pierre Manent’s profound and strikingly original book La loi naturelle et les droits de l’homme is a reflection on the central question of the Western political tradition. In six chapters, developed from the prestigious Étienne Gilson lectures at the Institut Catholique de Paris, and in a related appendix, Manent contemplates the steady displacement of the natural law by the modern conception of human rights. He aims to restore the grammar of moral and political action, and thus the possibility of an authentically political order that is fully compatible with liberty. Manent boldly confronts the prejudices and dogmas of those who have repudiated the classical and Christian notion of “liberty under law” and in the process shows how groundless many contemporary appeals to human rights turn out to be. Manent denies that we can generate obligations from a condition of what Locke, Hobbes, and Rousseau call the “state of nature,” where human beings are absolutely free, with no obligations to others. In his view, our ever-more-imperial affirmation of human rights needs to be reintegrated into what he calls an “archic” understanding of human and political existence, where law and obligation are inherent in liberty and meaningful human action. Otherwise we are bound to act thoughtlessly and in an increasingly arbitrary or willful manner. Natural Law and Human Rights will engage students and scholars of politics, philosophy, and religion, and will captivate sophisticated readers who are interested in the question of how we might reconfigure our knowledge of, and talk with one another about, politics.