Abstract

In lieu of an abstract, here is a brief excerpt of the content: Reviewed by: The Singular Voice of Being: John Duns Scotus and Ultimate Difference by Andrew Lazella Christopher Cullen S.J. Andrew Lazella, The Singular Voice of Being: John Duns Scotus and Ultimate Difference. Medieval Philosophy: Texts and Studies. New York: Fordham University Press, 2019. Pp. x + 260. $72.00. ISBN: 9780823284573. John Duns Scotus (c. 1265–1308) is aptly called the Subtle Doctor. His thought is filled with subtleties and distinctions that embody medieval Scholasticism's attempt to master the science of metaphysics, especially as it had been recast by the rediscovery of Aristotle's Metaphysics—a text that Scotus wrote about at length. Andrew Lazella's book, The Singular Voice of Being: John Duns Scotus and Ultimate Difference aims precisely at presenting the subtleties of Scotus' answer to Parmenides with the Eleatic's denial of the reality of the multiplicity of beings and of change. Lazella first illumines in detail Scotus's central metaphysical doctrine, namely, that the mind attains a univocal concept of being. But the problem then becomes, as Lazella rightly perceives, that this "univocity of being" might seem to be in danger of collapsing being into a Parmenidean monism. Hence, the urgency for Scotus "to divide being at its joints" (as Lazella refers to the task; 2). Scotus has to find the ultimate differences that demarcate the multiplicity and divisions of being, if his univocity of being is not to collapse being into a false unity. Lazella shows how Scotus attempts to escape the monism of Parmenides while also avoiding a Heraclitean flux and multitude that destroys the possibility of knowledge and science. For Scotus, only the univocal concept of being is adequate to this task. An analogy of being is inadequate, primarily because it is on the side of equivocation. The univocal concept is "the singular voice of being" that illumines the unity of the finite world, with its vast multitude of things, and that also grounds the concepts of a natural theology of the infinite God. Lazella insightfully begins the book by presenting Scotus's work as an answer to Parmenides and thus to the most basic of all metaphysical questions, as discussed above. Part 1 of the book includes three chapters: the first two discuss in detail the univocal concept that unites beings, and [End Page 237] chapter 3 outlines the concept of the ultimate difference that divides being. Lazella highlights a threefold taxonomy of ultimate differences that are found in the modes, species, and individuals of being. Part 2 of the book includes three chapters, one on each of the "regions" of ultimate difference: chapter 4 treats the intrinsic modes of being; chapter 5 the ultimate specific differences that account for the diversity of species; and chapter 6 presents the ultimate individual difference, i.e., "thisness" or haeceitas, which accounts for the reality of the individual substances. A helpful conclusion summarizes the argument of the book as a whole."In his early Quaestiones super Praedicamenta Aristotelis, Scotus says that things are univocally named when they share not only the same term (vox) or name (nomen) but also the same account (ratio)" (17). The opposite extreme from univocty is equivocity. Equivocity obtains when things only share a name but have different accounts. In between these two extremes is analogy: "Analogical names require that the name signify multiple rationes, which are unified according to some order or relation" (17). This account of these three terms is uncontroversial. Lazella thinks that Scotus's turn to univocity, as the ground of metaphysics, is driven largely by his epistemology. For Scotus, "cognition is rooted in sensible accidents and is unable to gain access to the real essences of substances themselves" (6). Hence the isomorphism between mind and reality cannot be secured without a univocal concept of being, contra the views of the majority of his fellow thirteenth-century Scholastics, such as Bonaventure and Aquinas. A key point is that, for Scotus, the intelligible species, or likeness, abstracted from the phantasm by the agent intellect, is not understood as a mirror that re-presents the form found in the concrete substances of the world. For Scotus, the intelligible species is no longer understood as a formal sign that...