An important debate carried on among 20th-century Catholic theologians, from Henri de Lubac and Reginald Garrigou-LaGrange to Karl Rahner and Hans Urs von Balthasar, concerned the relationship between nature and gracethe very intersection between the human and the divine. Despite Catholicism’s

Karl Rahner, S.J., (1904-84) and Hans Urs von Balthasar (1905-88), are in my estimation the two most influential Catholic theologians of the 20th century. Rahner, a German Jesuit priest profoundly influenced by the Spiritual Exercises of St. Ignatius Loyola, spent his life primarily as a teacher and