As Catholic theology emerged from the crisis of modernity, theologians turned to both patristic and medieval sources to recover lost wisdom from the theological tradition, and adapt it to the challenges of an age that separated reason from faith, the practice of theology from the spiritual life. . In time, Thomas Aquinas and Hans Urs von Balthasar became the patrons of two very different approaches to this challenge. St. Thomas Aquinas offering contemporary theologians an approach rooted in the patristic-medieval Latin synthesis of Augustine and Aristotle that also draws on the East, and von Balthasar offering contemporary theologians a patristic-modern approach rooted in the Eastern theological synthesis of Maximus the Confessor and Erich Pzrywara, that also draws on the West. Although Aquinas and Balthasar, together with their contemporary followers, sought to unite reason and faith, theology and prayer, contemporary Thomists and Balthasarians have tended to diverge widely from one another, often with a polemical spirit. How should one understand the theological genius of St. Thomas Aquinas and Hans Urs von Balthasar today? How can two of the greatest theologians in the Catholic tradition be brought together in more fruitful and peaceful dialogue?