Augustine and Thomas Aquinas on Social Order and Governance offers a masterful exploration of two towering giants of Christian thought whose ideas have shaped the very foundations of Western political philosophy. From the turbulent decline of the Roman Empire to the intellectual revival of the Middle Ages, Augustine and Aquinas grappled with timeless questions about power, justice, authority, and the moral responsibilities that underpin society. This richly detailed study delves deep into their profound visions of social order—Augustine's sobering dualism of the City of God and the Earthly City, and Aquinas's elegant synthesis of Aristotelian reason with Christian theology. It reveals how Augustine's realism about human sinfulness and political imperfection laid the groundwork for medieval political prudence, while Aquinas's natural law framework provided a systematic blueprint for just governance grounded in reason and divine providence. Beyond their historical contexts, the book illuminates how these thinkers' reflections on law, authority, the role of the Church, the limits of political power, and the pursuit of the common good continue to resonate today. Bridging theology, philosophy, and political theory, this work offers readers a nuanced understanding of the ethical foundations of governance and the enduring tensions between spiritual ideals and worldly realities. Whether you are a scholar of political theory, a student of theology, or a reader intrigued by the origins of modern ideas about justice and authority, this book provides an indispensable guide to the legacy of Augustine and Aquinas—a legacy that challenges and inspires the quest for just and moral governance in any era.