Erich Przywara was a Jesuit priest, philosopher, and theologian of German-Polish origin, who was one of the first Catholics to engage in dialogue with modern philosophers, especially those of the phenomenological tradition. He is best known for synthesizing the thought of prominent thinkers around the notion of the analogy of being, the tension between divine immanence and divine transcendence, a "unity-in-tension".

Hans Urs von Balthasar was a Swiss theologian and Catholic priest who is considered one of the most important Catholic theologians of the 20th century. With Joseph Ratzinger and Henri de Lubac, he founded the theological journal Communio. Over the course of his life, he authored 85 books, over 500 articles and essays, and almost 100 translations. He is known for his 15-volume trilogy on beauty, goodness (Theo-Drama), and truth (Theo-Logic).