The author presents a practical guide to moral duty, distinguishing honorable conduct from merely useful actions and offering principles for resolving conflicts between them. Arranged in three parts, the work outlines general ethical maxims, duties owed to family and community, and examples of honorable behavior in public and private life, illustrated with historical examples and philosophical argument. Drawing on Greek ethical traditions while favoring pragmatic judgment, the text advises on justice, fidelity, and civic responsibility, aiming to translate philosophical ideals into concrete rules for conduct and decision-making.