Though the relationship between Jesuits and Dominicans has historically been marked by theological controversy, Ignatius of Loyola, the founder of the Jesuits, shows remarkable affinity for the Thomistic tradition, the tradition advanced above all by the Dominican order. When writing the Jesuit Constitutions, in fact, Ignatius made Thomas Aquinas's Summa Theologiae the primary textbook for Jesuit theological formation. The contributions to this volume?originating from Jesuits, Dominicans, and lay scholars alike?explore different aspects of the complex yet illuminating relationship between Ignatius and Thomas. The themes range from the general relationship between the early Jesuits and scholastic theology to the attempts by Francisco de Toledo, the first Jesuit cardinal, to apply Thomistic reasoning to the religious and legal status of Jewish converts to Christianity. Other contributions compare Ignatius and Thomas on topics of significant interest for dogmatic, sacramental, and spiritual theology: spiritual experience, the ordering of the passions, the use of the imagination, prudence and discernment of spirits, frequent communion, Mariology, the "hierarchical church," and the limits of obedience. Students of Ignatius of Loyola, Thomas Aquinas, second scholasticism, Christian-Jewish relations, and spiritual theology in general will find this volume an invaluable contribution.