The Treatise on Law: Summa Theologiae, I-Ii, Qq. 90-97 by Thomas Aquinas – A Masterwork on Natural Law and Jurisprudence

Introduction

For students of jurisprudence, philosophy, and theology, Thomas Aquinas's The Treatise on Law: Summa Theologiae, I-II, Qq. 90-97 stands as one of the most influential works on the nature of law in Western thought. This hardcover edition from the University of Notre Dame Press presents the original Latin text alongside a precise English translation by the renowned scholar R. J. Henle, S.J. Whether you are a law student in Delhi, a philosophy scholar in Mumbai, or a theology enthusiast in Bengaluru, this volume offers an authoritative gateway to understanding the foundations of legal theory through the lens of one of history's greatest thinkers.

Book Overview

This volume contains the essential core of Aquinas's legal philosophy, extracted from his monumental Summa Theologiae. Covering Questions 90 through 97 of the First Part of the Second Part (I-II), the Treatise examines the definition, kinds, effects, and eternal principles of law. Henle's translation is celebrated for its clarity and fidelity, making complex Scholastic arguments accessible to modern readers. The book also includes a comprehensive introduction that situates Aquinas within his historical and intellectual context, along with detailed commentary that unpacks each question and article. This is not merely a translation but a complete study resource for anyone serious about law and moral philosophy.

Key Highlights

• Bilingual Edition: Facing-page Latin and English text for direct comparison and deep study.
• Expert Translation: R. J. Henle, S.J., a leading authority on Aquinas, provides a fluent and accurate rendering.
• In-Depth Commentary: The only extensive English commentary available on this specific part of the Summa.
• Historical Context: Detailed background on Aquinas's life, the structure of the Summa Theologiae, and Scholastic philosophy.
• Authoritative Sources: Explores Aquinas's use of the Bible, Aristotle, St. Augustine, and other auctoritates.
• Premium Hardback: Durable binding suitable for libraries, classrooms, and personal collections.

Inside the Book

The book is divided into two main parts. The first section provides a rich introduction covering the life and works of St. Thomas, the structure and purpose of the Summa Theologiae, and the general doctrinal background necessary for understanding the Treatise. Henle explains Aquinas's definition of law as 'an ordinance of reason for the common good, made by him who has care of the community, and promulgated.' The second section presents the Treatise itself, with each of the seven questions broken down into articles. Henle's commentary follows each article, clarifying arguments, objections, and replies. The volume also includes a glossary of key terms and a bibliography for further reading.

Key Topics

• The essence and definition of law
• The four kinds of law: Eternal, Natural, Human, and Divine
• The effects of law: commanding, forbidding, permitting, and punishing
• The binding force of human law and its limits
• The relationship between law, morality, and reason
• The role of custom and dispensation
• Aquinas's method of Scholastic disputation

Reader Benefits

This edition empowers you to engage directly with Aquinas's arguments without relying on secondary summaries. The facing-page Latin text allows advanced students to verify translations and appreciate the original terminology. Henle's commentary clarifies difficult passages and connects Aquinas's ideas to broader philosophical debates. By studying this Treatise, you gain a deeper understanding of how law relates to justice, virtue, and the common good—concepts that remain vital in Indian legal and ethical discourse today. The hardcover format ensures longevity, making it a valuable addition to any serious library.

Learning Outcomes

• Articulate Aquinas's definition of law and its four essential components.
• Distinguish between Eternal, Natural, Human, and Divine law.
• Analyze the moral and rational foundations of legal obligation.
• Evaluate Aquinas's arguments on the limits of state authority.
• Apply Scholastic reasoning to contemporary legal and ethical questions.
• Read and interpret a primary text from the Summa Theologiae with confidence.

Who Should Read

This book is indispensable for undergraduate and postgraduate students of law, philosophy, theology, and political science. It is equally valuable for legal professionals seeking a deeper philosophical grounding, seminary students studying moral theology, and self-learners passionate about the history of ideas. Indian readers interested in natural law theory, comparative jurisprudence, or the intersection of religion and law will find Aquinas's insights remarkably relevant. Professors and researchers will appreciate Henle's scholarly apparatus for classroom use or personal reference.

About the Author

Thomas Aquinas (1225–1274) was a Dominican friar, philosopher, and theologian whose works have shaped Catholic thought and Western philosophy for centuries. His Summa Theologiae remains a cornerstone of Scholasticism, synthesizing Aristotelian philosophy with Christian revelation. Aquinas's writings on law, ethics, and metaphysics continue to be studied worldwide for their clarity, depth, and enduring wisdom.

About the Publisher

The University of Notre Dame Press is a distinguished academic publisher known for its contributions to philosophy, theology, and law. With a commitment to scholarly excellence, it produces critical editions and translations that serve students and researchers across the globe. This edition of the Treatise on Law reflects the press's dedication to making foundational texts accessible in both original and translated forms.

Conclusion

The Treatise on Law: Summa Theologiae, I-II, Qq. 90-97 is more than a historical document—it is a living resource for understanding the rational and moral dimensions of law. With Henle's expert guidance, readers can navigate Aquinas's intricate arguments and apply them to enduring questions of justice, authority, and human flourishing. Order your copy today from Bookshops.in and add this essential work to your library.