Abstract

In lieu of an abstract, here is a brief excerpt of the content:Where Do Substantial Forms Come From?—A Critique of the Theistic Evolution of Mariusz Tabaczek*Michael Chaberek O.P. and Monika Metlerska-ColerickIntroductionThe question posed in the present article is whether it is possible to be a proponent of theistic evolution and, at the same time, of the metaphysical [End Page 239] principles elaborated by St. Thomas Aquinas. The authors of Thomistic Evolution: a Catholic Approach to Understanding Evolution in the Light of Faith, recently published in Polish, imply that Aquinas's doctrine was not only compatible with the idea of biological macroevolution, but also—on some level—endorsed it.1 In his "Afterword" to the above publication, Mariusz Tabaczek points out certain deficiencies in the argumentation provided by its authors, simultaneously underlining that he agrees with the book's principal thesis.I will not examine the book by the American Dominicans in this article because I have already addressed their arguments in full in my book entitled Aquinas and Evolution,2 where I demonstrated that it is impossible to be both a proponent of theistic evolution and a follower of the philosophical views proposed by St. Thomas. In his "Afterword," Tabaczek presents a contradictory thesis. He claims that being both of the above is possible, provided that one modifies St. Thomas's teaching in four "essential aspects." The very approach of this kind already raises doubts. After all, if St. Thomas's doctrine indeed needs to be modified in order to reconcile his thought with evolution, it suggests that, in fact, it cannot be reconciled with it. Therefore, perhaps the problem comes down to asking whether the four points of incompatibility indicated by Tabaczek really constitute an "essential" part of Aquinas's doctrine? If it is not the case, they might be omitted or modified. If, however, they relate to certain essential elements of Aristotelian-Thomistic metaphysics, disregarding them equals denying St. Thomas's teaching and, consequently, makes it impossible to reconcile it with theistic evolution.In order to settle the problem, I devote the first part of my article to determining whether the points presented by Tabaczek refer to the essential elements of Aquinas's discourse. In the second part of my text, however, I move to a more important point, namely the fact that theistic evolution encounters many more problems in the context of Thomistic metaphysics. Since I have already addressed this matter in several places,3 I limit the scope [End Page 240] of the second part of my article to only one such problem: the emergence of new substantial forms (new species) via the mechanism of evolution. Thus, the object of the present analysis is to examine whether the solution suggested by Tabaczek provides an explanation to the problem of the origin of new substantial forms in theistic evolution.Commentary on the Four Points of IncompatibilityAccording to Tabaczek, the teaching of St. Thomas can be reconciled with theistic evolution under the conditions of:(1) recognizing the possibility of the emergence of new species, that is, acknowledging that the perfection of the universe can increase every day not only in terms of the number of individual beings, but also as regards the number of species; (2) emphasizing the fact that God's initial act of creation is limited to the derivation of matter of the lowest degree of complexity out of nothing (ex nihilo); (3) recognizing the fact that the processes of chemical, biochemical, and biological evolution belong to the work of adornment (opus ornatus), whose subsequent stages spread out across the entire history of the universe and, therefore, are not limited to a finished and past time period; and finally (4) acknowledging that God's direct intervention in the creation of the first representatives of plant and animal species (with the exception of man) is not necessary.4Ad (1) and ad (3). Points 1 and 3 boil down to the same idea, since they are both concerned with the fact that evolution continues, whereas from the Christian perspective, the divine work of creation had already finished. Therefore, if one adopts theistic evolution, the Christian truth of God completing his creative work with the creation of man has to be rejected. The...