Abstract
In the introduction to Aquinas on Friendship, Daniel Schwartz admits that his treatment of Aquinas’s theory of friendship is not exhaustive. His central argument is that Aquinas reworks several elements of Aristotle’s view of friendship in accordance with his Christian commitment to the ideal of friendship with God and to the theological virtue of charity. Schwartz develops this argument through a detailed description of some of the elements of Aquinas’s theory, most notably the concept of concordia, along with responses to the challenges posed by those elements, drawn from such luminaries as John Duns Scotus, Cicero, and St. Paul.According to Schwartz, Aquinas identifies three acts of friendship: concordia, benevolentia, and beneficentia. While he claims that these three acts represent the larger themes of the volume, its content and subject index suggest otherwise. Chapters two through four address the nature of concordia and the possible impediments to it, such as heresy, disparity of