Medieval Philosophy or A Treatise of Moral and Metaphysical Philosophy from the Fifth to the Fourteenth Century by Frederick Denison Maurice is a thorough exploration of the development of philosophical thought during the medieval period, focusing on both moral and metaphysical dimensions. Maurice traces the evolution of key ideas and debates in Christian, Islamic, and Jewish philosophy from late antiquity through to the high Middle Ages.

This work covers major figures such as Augustine, Boethius, Anselm, Avicenna, Averroes, Thomas Aquinas, and Duns Scotus, addressing how they tackled profound questions regarding the nature of God, the relationship between faith and reason, the essence of the soul, free will, and morality. Maurice also explores how classical Greek philosophy, especially the works of Plato and Aristotle, was reinterpreted and integrated into the medieval scholastic tradition.

The book is notable for its critical analysis of how moral and metaphysical philosophy adapted to theological imperatives during this period and how it laid the groundwork for later developments in Renaissance and modern philosophy. Maurice provides historical context, illuminating the cultural and intellectual milieus that shaped the thinking of medieval philosophers.

This treatise is indispensable for students and scholars interested in the history of philosophy, particularly those focusing on the medieval era, its moral theories, and metaphysical inquiries. Maurice’s work remains a valuable resource for understanding the rich intellectual heritage of the Middle Ages and its enduring influence on Western thought.