Abstract

In lieu of an abstract, here is a brief excerpt of the content:"A Unity of Order":Aquinas on the End of PoliticsWilliam McCormick S.J.Nonspecialists are often surprised to learn that Aquinas's thought on Church and state is a matter of obscurity. After all, Aquinas is the most famous medieval thinker in the West, and the question of Church and state is one of the best-known medieval political questions. And yet his thought on that polemical topic remains obscure. As John Watt puts it: "There are too many ambiguities in his doctrine and too many unanswerable questions about what he did or did not hold."1Why is his view not better understood? Part of its obscurity is the relative infrequency with which he writes on politics.2 Another is the relative lack of interest in medieval political thought among political scientists and historians of political thought, an obscurity dating back to the Renaissance.3 Those who do study Aquinas's thought, moreover, have been mired in a controversy over two key texts: one from book II of his Scriptum or commentary on Peter Lombard's Sentences (d. 44, q. 2, a. 3, exp. text.), and the other in book II of De regno (On kingship), chapter 3 (no. 110). For brevity, I will use S for the Scriptum passage and R for the De regno passage.4 These two [End Page 1019] appear to contradict each other, and with respect to fundamental political questions. The debate over these two texts points to what most contributes to the obscurity of Aquinas's teaching on Church and state: confusion about his vision of politics in human life. As I will show in this paper, Aquinas transcends modern categories of the "secular" and "belief" in his treatment of politics. Aquinas valorizes the integrity of political activity: that autonomy is not just a concession to the modern condition. It is in fact when Aquinas is most theological that he is most open to that integrity. The integrity of the political speaks to the intrinsic goodness of that order: it mirrors God's unity in its complex and ordered diversity.In this paper I examine R and S to show their concordance. I argue that they are complementary in what they prescribe for relations between Church and state, and indeed grounded in the same account of the origins of political authority. Through this investigation we will uncover key principles of Aquinas's political thinking that show him to have a capacious vision of politics where humans achieve the actualization of their full beings as human.A key notion will be unitas ordinis, or unity of order: the form of human cooperation in political life. As we will see, that form strikes a middle path between the simple unity of the individual person and the orderless collectivity of a crowd. For Aquinas, that order is itself a common good of politics, and an intrinsic one at that, before any "extrinsic" common good achieved by the people through that order. Part of why this seemingly secular consideration is good is its theological importance: it mirrors God.Further, if Aquinas does not elaborate on political arrangements as much as one would like, nevertheless he offers sure guidance for the principles which ought to guide the prudent development of those arrangements in a particular time and place. Ultimately Aquinas shows that medieval political thought is in key respects not as alien and hostile to us as we might imagine, but in its own way equally concerned about the integrity of the political life.5The Teaching of SAquinas's teaching on Church and state in S is widely accepted as his mature "two powers" teaching. Aquinas's most famous work, the Summa theologiae [ST], would eventually replace Lombard's Sentences, but in Thomas's own thirteenth century it was that compendium of quotations and arguments [End Page 1020] from Christian sources compiled by the twelfth-century theologian-bishop Lombard that was the standard theology textbook in the Latin West—the Ur-text for theological teaching and scholarship.6The Sentences is perhaps the most important Western book no one has heard of. It was so influential not only because it collected a rich trove of...