"Potens Per Accidens Sine Accidentibus: Ockham on Material Substances and Their Essential Powers." Vivarium 59, no. 1-2 (2021): 102-122.
Abstract. Medieval scholastics share a commitment to a substance-accident ontology and to an analysis of efficient causation in which agents act in virtue of their powers. Given these commitments, it seems ready-made which entities are the agents or powers: substances are agents and their accidents powers. William of Ockham, however, offers a rather different analysis concerning material substances and their essential powers, which this article explores. The article first examines Ockham’s account of propria and his reasons for claiming that a material substance is essentially powerful sine accidentibus. However, the article subsequently argues that, given Ockham’s reductionism about material substance, only substantial forms – never substances – are truly agents and powers. Thus, a material substance is essentially powerful but only by courtesy – per accidens, as Ockham calls it – because it has a non-identical part, its substantial form, which does all the causal work by itself, per se.
"Reframing Aquinas on Art and Morality." American Catholic Philosophical Quarterly 92, no. 2 (April 2018): 295-311.
Abstract. Can a work of art be defective aesthetically as art because it is defective morally? Etienne Gilson and Jacques Maritain both develop Thomistic accounts of the arts based on Aquinas’s distinction between the virtues of art and prudence, but they answer this question differently. Although their answers diverge, I will argue that both accounts make a crucial assumption about the metaphysics of goodness that Aquinas denies, namely, that moral and aesthetic goodness are distinct species, not inseparable modes, of metaphysical goodness. I propose a new way to develop a Thomistic account of the arts that begins with Aquinas’s treatment of the three inseparable modes of metaphysical goodness: the virtuous, the useful, and the pleasant. This foundation seems metaphysically, methodologically, and explanatorily prior to the accounts of Gilson and Maritain, because art is a virtue, and virtue is related to goodness, and goodness is “divided” into three inseparable modes.
Translations
From the Father Alone: The Anti-unionist Works of St Mark of Ephesus on the Procession of the Holy Spirit
Abstract. This is the first ever Greek-English translation of a number of St Mark of Ephesus's anti-unionist works on the procession of the Holy Spirit, which can be found in the critical edition, Marci Eugenici Metropolitae Ephesi Opera anti-unionistica (Rome: Pontificium Institutum Orientalium Studiorum, 1977):
Florilegium on the Procession of the Holy Spirit (Testimonia a Marco Ephesio collecta quibus probatur, ut ait, Spiritum Sanctum e solo Patre procedere)
Syllogistic Chapters Against the Latins (Marci Ephesii capita syllogistica adversus Latinos de Spiritus Sancti ex solo Patre processione)
Dialogue on the Latin Addition to the Creed (Marci Ephesii dialogus de additione ad symbolum a Latinis facta)
Confession of the Right Faith, Expounded at Florence (Marci Ephesii confessio fidei Florentiae scripta sed post absolutam synodum in lucem edita)
Statement and Explanation of the Council at Florence (Marci Ephesii relatio de rebus a se in synodo Florentina gestis)
Encyclical Against the Latin-minded Greeks (Marci Ephesii epistola encyclica contra Graeco-Latinos ac decretum synodi Florentinae)
Questions on Aristotle's Physics: A Translation of William of Ockham's Quaestiones in libros Physicorum Aristotelis
Abstract. This is a translation of William of Ockham's Quaestiones in libros Physicorum Aristotelis, in which he raises over one hundred-fifty quodlibetal questions on motion, space, time, primary and secondary qualities, efficient causation, and so on. This work complements his Quodlibetal Questions Volumes 1 and 2, Quodlibets 1-7.
Manuscripts
Latina Scholastica Per Se Illustrata
Abstract. This is the first ever book to introduce students to medieval scholastic Latin and philosophy by using Hans Ørberg's "direct method" of teaching Latin in Latin. This intermediate Latin book applies Ørberg's method to a number of Scholastic works on natural philosophy, such as Thomas Aquinas's De principiis naturae, to introduce students to (1) Scholastic Latin syntax and grammar and (2) fundamental concepts in scholastic metaphysics.