Edward Feser, The Thomistic tradition, Part I

Several schools of thought describing themselves as “Thomistic” have developed over the course of the last century or so, each representing a different response to the characteristic themes and assumptions of modern philosophy. Since they have had such a profound influence on the contemporary debate over Aquinas’s thought, it will be worthwhile briefly to describe the main positions:

1. Neo-Scholastic Thomism: The dominant tendency within Thomism in the first decades after the revival sparked by Leo’s encyclical, this approach is reflected in many of the manuals and textbooks widely in use in Roman Catholic colleges and seminaries before Vatican II. Due to its emphasis on following the interpretative tradition of the great commentators on Aquinas (such as Capreolus, Cajetan, and John of St. Thomas) and associated suspicion of attempts to synthesize Thomism with non-Thomistic categories and assumptions, it has also sometimes been labeled “Strict Observance Thomism.” Still, its focus was less on exegesis of the historical Aquinas’s own texts than on carrying out the program of deploying a rigorously worked out system of Thomistic metaphysics in a wholesale critique of modern philosophy. Its core philosophical commitments are summarized in the famous “Twenty-Four Thomistic Theses” approved by Pope Pius X. Reginald Garrigou-Lagrange (1877-1964) is perhaps its greatest representative.

2. Existential Thomism: Etienne Gilson (1884-1978), the key proponent of this approach to Thomism, tended to emphasize the importance of historical exegesis but also to deemphasize Aquinas’s continuity with the Aristotelian tradition, highlighting instead the originality of Aquinas’s doctrine of being or existence. He was also critical of the Neo-Scholastics’ focus on the tradition of the commentators, and given what he regarded as their insufficient emphasis on being or existence accused them of “essentialism” (to allude to the other half of Aquinas’s distinction between being and essence). Gilson’s reading of Aquinas as putting forward a distinctively “Christian philosophy” tended, at least in the view of his critics, to blur Aquinas’s distinction between philosophy and theology. Jacques Maritain (1882-1973) introduced into Thomistic metaphysics the notion that philosophical reflection begins with an “intuition of being,” and in ethics and social philosophy sought to harmonize Thomism with personalism and pluralistic democracy. Though “existential Thomism” was sometimes presented as a counterpoint to modern existentialism, the main reason for the label is the emphasis this approach puts on Aquinas’s doctrine of existence. Contemporary proponents include Joseph Owens and John F. X. Knasas.

3. Laval or River Forest Thomism: This approach emphasizes the Aristotelian foundations of Aquinas’s philosophy, and in particular the idea that the construction of a sound metaphysics must be preceded by a sound understanding of natural science, as interpreted in light of an Aristotelian philosophy of nature. Accordingly, it is keen to show that modern physical science can and should be given such an interpretation. Charles De Koninck (1906-1965), James A. Weisheipl (1923-1984), William A. Wallace, and Benedict Ashley are among its representatives. It is sometimes called “Laval Thomism” after the University of Laval in Quebec, where De Koninck was a professor. The alternative label “River Forest Thomism” derives from a suburb of Chicago, the location of the Albertus Magnus Lyceum for Natural Science, whose members are associated with this approach. It is also sometimes called “Aristotelian Thomism” (to highlight its contrast with Gilson’s brand of existential Thomism) though since Neo-Scholastic Thomism also emphasizes Aquinas’s continuity with Aristotle, this label seems a bit too proprietary. (There are writers, like the contemporary Thomist Ralph McInerny, who exhibit both Neo-Scholastic and Laval/River Forest influences, and the approaches are not necessarily incompatible.)

4. Transcendental Thomism: Unlike the first three schools mentioned, this approach, associated with Joseph Marechal (1878-1944), Karl Rahner (1904-84), and Bernard Lonergan (1904-84), does not oppose modern philosophy wholesale, but seeks to reconcile Thomism with a Cartesian subjectivist approach to knowledge in general, and Kantian epistemology in particular. It seems fair to say that most Thomists otherwise tolerant of diverse approaches to Aquinas’s thought tend to regard transcendental Thomism as having conceded too much to modern philosophy genuinely to count as a variety of Thomism, strictly speaking, and this school of thought has in any event been far more influential among theologians than among philosophers.

5. Lublin Thomism: This approach, which derives its name from the University of Lublin in Poland where it was centered, is also sometimes called “phenomenological Thomism.” Like transcendental Thomism, it seeks to combine Thomism with certain elements of modern philosophy, though in a way that is less radically revisionist. In particular, it seeks to make use of the phenomenological method of philosophical analysis associated with Edmund Husserl and the personalism of writers like Max Scheler in articulating the Thomist conception of the human person. Its best-known proponent is Karol Wojtyla (1920-2005), who went on to become Pope John Paul II.