All these lectures converge to this conclusion: that the Middle Ages produced, besides a Christian literature and a Christian art as everyone admits, this very Christian philosophy which is a matter of dispute. No one, of course, maintains that this mediaeval philosophy was created out of nothing, nor yet that all mediaeval philosophy was Christian -- just as no one maintains that mediaeval literature and art were created out of nothing or were wholly Christian. - Preface.

The problem of Christian philosophy -- The concept of Christian philosophy -- Being and its necessity -- Beings and their contingence -- Analogy, causality and finality -- Christian optimism -- The glory of God -- Christian providence -- Christian anthropology -- Christian personalism -- Self-knowledge and Christian Socratism -- Knowledge of things -- The intellect and its object -- Love and its object -- Free-will and Christian liberty -- Christian law and morality -- Intention, conscience and obligation -- The Middle Ages and nature -- The Middle Ages and history -- The Middle Ages and philosophy.