• Philosophy and Language
    Philosophy Documentation Center. 2011.
    This volume of the Proceedings of the American Catholic Philosophical Association contains a selection of peer-reviewed papers originally presented at the ACPA's 2010 meeting. Language is at the heart of the ability to do philosophy, and this conference explored the use of words and meaning from several perspectives. Contributors include Danial Dahlstrom, Thérèse-Anne Druart, Gene Fendt, Ann Hartle, Daniel Heider, Alasdair MacIntyre, Alexander Pruss, and Michael Wiitala.
  • MacIntyre and Thomism
    In Learning from MacIntyre, . pp. 52-76. 2020.
    Thomists need to learn from and address MacIntyre’s account of moral disagreement, whether or not they will ultimately agree with its broad outlines. First, they should consider that MacIntyre’s emphasis on social roles as an explanation of moral disagreement accounts for only some kinds of moral disagreement and growth. Second, a recognition of different kinds of disagreement shows that only some can be adequately addressed by moral philosophy, and even those that can be so addressed require no…Read more
  • Francisco De Vitoria on the Nature and Source of Civil Authority
    Review of Politics 85 (85): 1-22. 2023.
    Readers have found at least two distinct and perhaps contradictory accounts of civil authority in the works of Francisco de Vitoria, and some hold that Vitoria himself holds contradictory positions. This article argues that Vitoria holds one consistent position, namely that civil power is based on a necessity that is rooted in human nature, and in particular on the final cause of human life, and not on a necessity that is a result of any historical decision or process on its own. Rulers receive …Read more
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    Thomas Aquinas on the Metaphysics of the Human Act by Can Laurens Löwe (review)
    Journal of the History of Philosophy 61 (1): 152-154. 2023.
    In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Thomas Aquinas on the Metaphysics of the Human Act by Can Laurens LöweThomas M. Osborne Jr.Can Laurens Löwe. Thomas Aquinas on the Metaphysics of the Human Act. Cambridge: Cambridge University Press, 2021. Pp. 225. Hardback, $99.99.This book is about the way in which Thomas Aquinas understands the human act to be composed of form and matter. It provides a fresh reading of many central texts from Thomas and addresses philo…Read more
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    Aquinas and the Infused Moral Virtues by Angela McKay Knobel
    Review of Metaphysics 76 (1): 144-146. 2022.
    In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Aquinas and the Infused Moral Virtues by Angela McKay KnobelThomas M. Osborne Jr.KNOBEL, Angela McKay. Aquinas and the Infused Moral Virtues. Notre Dame, Ind.: University of Notre Dame Press, 2021. 214 pp. Cloth, $65.00This book is the first substantial English monograph on Aquinas's account of the infused virtues in many years, and the most significant treatment of the issue since Gabriel Bullet, Vertus morales infuses e…Read more
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    Thomas Aquinas on Virtue
    Cambridge University Press. 2022.
    Thomas Aquinas produced a voluminous body of work on moral theory, and much of that work is on virtue, particularly the status and value of the virtues as principles of virtuous acts, and the way in which a moral life can be organized around them schematically. Thomas Osborne presents Aquinas's account of virtue in its historical, philosophical and theological contexts, to show the reader what Aquinas himself wished to teach about virtue. His discussion makes the complexities of Aquinas's moral …Read more
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    William of Ockham on the Freedom of the Will and Happiness
    American Catholic Philosophical Quarterly 86 (3): 435-456. 2012.
    When viewed in its historical context, Ockham’s moral psychology is distinctive and novel. First, Ockham thinks that the will is free to will for or against any object, and can choose something that is in some sense not even apparently good. The will is free from the intellect’s dictates and from natural inclinations. Second, he emphasizes the will’s independence not only with respect to passions and habits, but also with respect to knowledge, the effects of original sin, grace, and God. Third, …Read more
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    Thomas, Scotus, and Ockham on the Object of Hope
    Recherches de Theologie Et Philosophie Medievales 87 1-26. 2020.
    Thomas Aquinas, John Duns Scotus, and William of Ockham disagree over how and whether virtues are specified by their objects. For Thomas, habits and acts are specified by their formal objects. For instance, the object of theft is something that belongs to someone else, and more particularly theft is distinct from robbery because theft is the open taking of another’s good, whereas robbery is open and violent. A habit such as a virtue or a vice shares or takes the act’s object. For Scotus, althou…Read more
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    the contrast and similarity between Rist and Macintyre can be better understood if we take into account their different interpretations of the Republic, especially their 1) descriptions of the primary problem faced by Plato, 2) their interpretation of Plato’s response to the problem, and 3) their evaluation of the contemporary relevance of the problem and his response. The differences and similarities between the views of MacIntyre and Rist on the Republic reflect much larger difference and si…Read more
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    Aquinas's Ethics
    Cambridge University Press. 2020.
    This Element provides an account of Thomas Aquinas's moral philosophy that emphasizes the intrinsic connection between happiness and the human good, human virtue, and the precepts of practical reason. Human beings by nature have an end to which they are directed and concerning which they do not deliberate, namely happiness. Humans achieve this end by performing good human acts, which are produced by the intellect and the will, and perfected by the relevant virtues. These virtuous acts require th…Read more
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    Thomas Aquinas (d. 1274) held two theses that might seem incompatible to contemporary readers, namely 1) that an act of faith is reasonable even by the standards of human reason without grace, and 2) that this act surpasses the power of such unaided human reason. In the later Middle Ages, many theologians who were not Thomists held that someone who performs acts of infused faith must also perform such acts through an acquired faith that is based on natural reason. I argue that debates with Pro…Read more
  •  9
    Virtue
    In Thomas Williams (ed.), The Cambridge Companion to Medieval Ethics, Cambridge University Press. pp. 150-171. 2018.
    The essay on thirteenth-century ethics will trace the history of three major themes in moral philosophy and theology, namely the morality of individual acts, virtue, and happiness. Both Peter Lombard’s rejection of Abelard’s focus on intention and the Fourth Lateran Council’s remarks on confession caused thinkers such as William of Auvergne and Philip the Chancellor to develop a way of classifying acts and determining responsibility for such acts. Thomas Aquinas and clarified and changed the t…Read more
  •  2
    Natural Reason and Supernatural Faith
    In Jeffrey P. Hause (ed.), Aquinas’s Summa Theologiae: A Critical Guide, Cambridge University Press. pp. 188-203. 2019.
    Some philosophers seem to argue that faith is or should be produced by arguments, whereas others describe faith as non-rational or even irrational. In the Summa Theologiae, Thomas states that arguments and miracles can show that faith is reasonable, even though unaided reason on its own cannot produce an act of faith. The insufficiency of reason for faith is a necessary condition of faith’s freedom and merit. The explanation of this insufficiency lies in the formal object of faith, which make…Read more
  • Review (review)
    The Thomist 73 506-509. 2009.
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    During the last fifteen years some theologians during have supported their understanding of how unbelievers might be saved by appealing to Thomas Aquinas and the development of his thought in by sixteenth-century Dominicans at Salamanca. These Salamancan Dominicans applied Thomas’ thought in the context of the New World’s discovery. These recent theologians attribute two claims to this tradition: first, that not every unbeliever is guilty of unbelief, and second, that unbelievers can perform…Read more
  • I argue that Diego Alvarez and Thomas de Lemos through their participation in the De auxiliis controversy developed and defended Cajetan’s view of the causation of sin in such a way that they were able to defend the predetermination of the material aspect of sin while at the same time assimilating important aspects from his critics. It is important to recognize that Lemos and his associates hold both that the premotion of sin’s material aspect is not necessarily connected with the Catholic faith…Read more
  • The proliferation of new accounts of infused and acquired virtue in Thomas has brought much welcome attention to his understanding of the relationship between nature and grace. But the very originality of these interpretations has raised a multitude of unanswered questions and difficulties. For any of these accounts to be plausible, they must be accompanied by an account of the way in which Thomas thinks that the specifically one virtue of prudence considers the matter of all virtues, and his st…Read more
  • James of Viterbo's Ethics
    In Antoine Côté & Martin Pickavé (eds.), A Companion to James of Viterbo, Brill. pp. 306-330. 2018.
    James of Viterbo’s ethical writings focus mostly upon happiness and virtue. His basic approach is Aristotelian. Although he is not a Thomist in the sense that some of his contemporary Dominicans were, he frequently quotes or paraphrases Thomas while arguing for his own positions, especially in response to views defended by such figures as Giles of Rome, Godfrey of Fontaines, and Henry of Ghent. James departs from Thomas by arguing that all acquired virtue is based on an ordered self-love. J…Read more
  • Which Essence Is Brought Into Being by the Existential Act?
    The Thomist 81 (4): 471-505. 2017.
    I argue that the essence that is actualized by existence is the essence that is a determinate nature in an individual and not the essence absolutely considered. This essence in individuals has a potential being that is actualized by existence. This thesis has important consequences for the essence/existence distinction in Thomas Aquinas
  • Practical reasoning
    In Brian Davies & Eleonore Stump (eds.), The Oxford handbook of Aquinas, Oxford University Press. 2011.
    Aquinas thinks that practical reason is distinct but not entirely insulated from speculative reason. Although his description of practical reasoning applies to a variety of human activities, his greatest focus is on that practical reasoning which is involved in human action. Although practical reasoning resembles the speculative in its use of a kind of syllogism, its connection with particular affairs precisely as contingent gives it a special character.
  • Natura Pura: Two Recent Works
    Nova et Vetera 11 (1). 2013.
    In two recent books Bernard Mulcahy and Steven Long defend the classical Thomistic understanding of pure nature. They contribute to the longstanding debate over Henri de Lubac’s understanding of the relationship between nature and grace in Thomas Aquinas and the Thomistic tradition. Although Mulcahy and Long criticize de Lubac, they respect his intentions and do not use ad hominem arguments. In order to correctly situate these recent works, it is important to review some elements in the histo…Read more
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    In lieu of an abstract, here is a brief excerpt of the content:Journal of the History of Philosophy 40.1 (2002) 119-121 [Access article in PDF] Book Review Ethics and Political Philosophy The Common Good in Late Medieval Political Thought Arthur Stephen McGrade, John Kilcullen, and Matthew Kempshall, editors. Ethics and Political Philosophy. Vol. 2 of The Cambridge Translations of Medieval Philosophical Texts. New York: Cambridge University Press, 2000. Pp. xii + 664. Cloth, $85.00. Paper, $29.9…Read more
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    Human Action in Thomas Aquinas, John Duns Scotus, and William of Ockham
    The Catholic University of America Press. 2014.
    Although Thomas, Scotus, and Ockham are all broadly Aristotelian, their different Aristotelian accounts reflect underlying disagreements in these three areas. These trends may represent a shift from an earlier to a later medieval intellectual culture, but they also reflect views that continued to exist in different schools. Thomists continued to exist alongside Scotists through the end of the eighteenth century, and Ockham’s views had a more varied but continued influence through the modern pe…Read more
  • This dissertation uses the context of the thirteenth-century debate about the natural love of God over self to clarify the difference between the ethical system of Thomas Aquinas and that of John Duns Scotus. Although Thomas and Scotus both believe that such love is possible, they disagree about the reasons for this position. ;Early thirteenth-century thinkers, such as William of Auxerre and Philip the Chancellor, were the first to distinguish between a natural love of God and charity, which is …Read more
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    The distinction between Thomas and Scotus on threefold referral is superficially similar in that both use the same terminology of actual, virtual, and habitual referral. For Scotus, an act is virtually referred to the ultimate end through an agent’s somehow explicitly thinking about the end and some sort of causal connection between the virtually intended act and the actually intended act. For Thomas, someone with charity virtually refers his acts to God as the ultimate end not because the act…Read more
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    Augustine and Aquinas on Foreknowledge through Causes
    Nova et Vetera 6 219-232. 2008.
    In his discussion of how future contingents are known and revealed Thomas systematized what Augustine had developed in his disputes with the Stoics and Pelagians. Thomas shows how logical determinism concerning future contingents is avoided by Aristotelian logic, according to which future contingents have no determinate truth. Moreover, he explicitly unravels how our understanding of causal contingency and necessity is applicable only to created causes. Nevertheless, Augustine had explicitly…Read more
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    Rethinking Anscombe on Causation
    American Catholic Philosophical Quarterly 81 (1): 89-107. 2007.
    Although Elizabeth Anscombe’s work on causation is frequently cited and anthologized, her main arguments have been ignored or misunderstood as havingtheir basis in quantum mechanics or a particular theory of perception. I examine her main arguments and show that they not only work against the Humean causaltheories of her time, but also against contemporary attempts to analyze causation in terms of laws and causal properties. She shows that our ordinary usage does not connect causation with laws,…Read more