The natural love of God over self: The role of self-interest in thirteenth-century ethics (Saint Thomas Aquinas, John Duns Scotus)

This dissertation uses the context of the thirteenth-century debate about the natural love of God over self to clarify the difference between the ethical system of Thomas Aquinas and that of John Duns Scotus. Although Thomas and Scotus both believe that such love is possible, they disagree about the reasons for this position.; Early thirteenth-century thinkers, such as William of Auxerre and Philip the Chancellor, were the first to distinguish between a natural love of God and charity, which is a love assisted by grace. Thomas Aquinas' approach to the issue is original. According to Thomas, since human beings are part of a political whole and also part of a whole whose good is God, it follows that they have a natural inclination to love the common good and God more than themselves. Although Thomas' position and his corresponding interpretation of Aristotle were upheld by Godfrey of Fontaines and Giles of Rome, it was severely criticized by James of Viterbo, who argued that the part always seeks its own good.; John Duns Scotus makes the same criticism of the part/whole argument, although Scotus emphasizes that the human will is free to act against the natural inclination for self-perfection. Scotus clearly distinguishes between the will and nature.; The conclusion of the dissertation argues that the debate prefigures the modern shift sway from an ethics based upon natural inclination along with the modern tendency to understand morality as a limitation of self-interest. Moreover, it is argued that modern Thomists need to take into account Thomas' original emphasis on natural inclination and the priority of the common good.