The Review of Metaphysics

Challenging general assumptions that, because of its genre as a letter to a king in the speculum principis tradition, Aquinas's De Regno is a minor source for Aquinas's political theory in comparison to the political passages from the Summa and Sentence Commentary, William McCormick, S.J. presents a new interpretation of this somewhat neglected text. Though there exist a few classic articles comparing Aquinas's thought in this letter and elsewhere, and substantial introductions to the De Regno in editions by Eschmann (1949) and Dondaine (1979), The Christian Structure of Politics is the first book-length study of Aquinas's letter to the king of Cyprus. In this respect, the volume makes a very welcome contribution to our understanding of Aquinas's understanding of political order, bringing out a dimension of his thought—its awareness of history and its pedagogical sensitivity—not so apparent in Aquinas's other writings.

The book is very much what it presents itself as being, namely, a "close reading" of the text, following the letter's two parts (the second of which [End Page 150] Aquinas left unfinished) paragraph by paragraph, considering various interpretative possibilities and suspending judgment—the words "might" and "perhaps" are no doubt two of the most frequent in the book—until more evidence comes into view, and working up to general principles only at the end. McCormick thus eschews substantial engagement with theoretical issues that would form the backdrop to the discussion (for example, the relation between nature and grace, and between practical and theoretical reason), opting instead to focus on a more immediate engagement with what is presented in the text itself. He also does not make more than passing comments on Aquinas's better-known formulations on political matters from the Summa or Sentences Commentary. On the other hand, the "close reading" does not keep McCormick from discerning a general order in Aquinas's letter, which he divides up thematically according to a proposed schema. His approach shows a sensitivity to the historical context in which Aquinas was writing, even if particular details about Aquinas's addressee and the occasion of composition remain uncertain, but his aim is not simply to produce a historical study. Instead, as the book's title itself already indicates, he investigates the De Regno in order to show that the text offers fundamental principles for a distinctively Christian approach to politics, and thus can shed light even on our contemporary situation.

The book is divided into five basic chapters, in addition to a substantial introduction and brief conclusion. The first four chapters follow the order of the De Regno, though the basic lines of division are McCormick's own interpretative proposal. Chapter 1 treats the letter's prooemium and the first two chapters of part one (I.1-2) under the title "The Aristotelian State of Nature," showing that, contrary to ideas found in a certain current of Christian thought, political order is fully natural to man and not simply a practical response to violence. Chapter 2, "The Augustinian Earthly City," treating I.3-6, complements the natural character of politics with the realistic acknowledgment of man's fallen nature. While some commentators have worried that the discussion of tyranny in these and subsequent chapters of the De Regno eclipses the positive account of politics given rather schematically at the start, and so diminishes the interest the text might hold for the political philosopher, McCormick argues that the engagement with the tyrant, and the disorder he generates, represents an essential dimension of Aquinas's political vision. Indeed, one of the principal theses of The Christian Structure of Politics is that Aquinas manages to integrate Aristotelian and Augustinian perspectives in an unusually illuminating way: Christian revelation, which introduces the eschatological horizon and foregrounds the historical narrative of sin and redemption, does not supplant but instead grounds and deepens the integrity of politics and...