The Complete Works Of Francisco Suárez - On the Laws, Books I–V, Volume V - Francisco Suárez

This fifth volume of Suárez’s Complete Works contains his comprehensive treatise on law, one of his most influential contributions to moral, political, and juridical philosophy. Written within the mature scholastic tradition, it offers a systematic account of law as an ordering principle of rational and social life.

Suárez begins by defining law in general and distinguishing its various forms, including eternal law, natural law, divine positive law, and human law. He carefully explains how law is grounded in reason and directed toward the common good, while ultimately deriving its authority from God as the first legislator.

The work then examines natural law in detail, arguing that it is rooted in human nature and accessible to reason. Suárez also analyzes human law, including civil and ecclesiastical legislation, focusing on their legitimacy, scope, and binding force. Particular attention is given to the conditions under which laws are just, as well as how they are applied and interpreted within society.

Throughout the treatise, Suárez combines metaphysical precision with juridical analysis, shaping a sophisticated theory of law that influenced both later scholastic thought and early modern legal philosophy. The result is a unified account of law as a rational, moral, and divine order governing both individuals and communities.