According to most medieval thinkers, whenever something causally acts on another thing, God also acts with it. Durand of St.-Pourçain, an early fourteenth-century Dominican philosopher, disagrees. This paper is about a fourteenth-century objection to Durand’s view, which I will call the Fiery Furnace Objection, as formulated by Durand’s contemporary, Peter of Palude. Although Peter of Palude is not usu- ally regarded as a particularly original thinker, this paper calls attention to one of his more interesting controversies with his fellow friar, (...) while it also clarifies how some medieval thinkers understood the broadly speaking Aristotelian conviction that causes and effects are necessarily related. (shrink)

According to theological consensus at least from the thirteenth century, at the End of Times our body will be resurrected and reunited with our soul. The resurrected body, although numerically identical to our present one, will be quite different: it will possess clarity, agility, subtility, and the inability to suffer. It is the last of these characteristics that will be of most concern in the present article. There are two reasons why impassibility presents a problem in the medieval framework. The (...) first has to do with how to characterize impassibility more precisely; the second arises because at first it may seem that impassibility is not metaphysically possible at all. The article will look at three attempts to tackle these problems: those of Thomas Aquinas, Durand of St.-Pourçain, and Peter of Palude. As the article aims to show, looking at how causal powers work on the New Earth may shed some light on how medieval thinkers thought they worked on the present one. (shrink)

For theological reasons, medieval thinkers maintained that sacraments “effect what they figure”—that is, they are more than mere signs of grace; and yet, they also maintained that they are not proper causes of grace in the way fire is the proper cause of heat. One way to reconcile these requirements is to explicate sacramental causation in terms of sine qua non causes, which were distinguished from accidental causes on the one hand, and from proper efficient causes on the other hand. (...) This article traces the development of this concept, as discussed in the context of the sacraments, from Scotus and Auriol, via Ockham and Peter of Ailly, to Gabriel Biel. It shows how the discussion, in its later stages, opened up concerns about occasionalism, offering thereby a case study of how particular theological issues led to metaphysical ones in the fourteenth and fifteenth centuries. (shrink)

In lieu of an abstract, here is a brief excerpt of the content:Reviewed by:Housing the Powers: Medieval Debates about Dependence on God by Marilyn McCord AdamsZita V. TothMarilyn McCord Adams. Housing the Powers: Medieval Debates about Dependence on God. Oxford: Oxford University Press, 2022. Pp. 240. Hardback, $80.00.Housing the Powers is a collection of eight interrelated articles by the late Marilyn McCord Adams (the fourth one coauthored with Cecilia Trifogli), pieced together as chapters of a book by Robert Merrihew Adams, (...) who also provides an introduction to the volume and a bibliography. The chapters are detailed and rigorous, and provide new perspectives on some old issues in medieval Aristotelian philosophy. The book is a must-read for anyone interested in medieval theories of causal powers and their surrounding clusters of problems, whether in the context of metaphysics, epistemology, the philosophy of mind, or even ethics.The book receives its title from some persistent conundrums in the medieval discussion concerning how to find suitable subjects for some Aristotelian causal powers, what these subjects must be like, how they and their power(s) are related, and some connected issues on the side of these powers’ objects. The subtitle indicates that the book also pays attention to the theological considerations that often played a significant role in the medieval treatments of these puzzles.Housing the Powers divides roughly into four parts. The first two chapters give a general introduction to the basic hylomorphic framework, discussing issues such as why to posit causal powers in the first place and how to account for the appearance of self-actuation (a causal power’s ability to reduce itself from potency to act) in some but not all instances of observed causal interaction. The next two chapters apply this general theory of causal powers to the human soul, discussing how the soul is related to its powers while dealing with various theological issues, mostly in connection with the Christian doctrine of the Trinity. Specifically, these two chapters analyze various solutions to a central conundrum: although the intellect is purely inorganic and immaterial, and the sensory part of the soul is necessarily tied to bodily organs, nevertheless they constitute some kind of a unity, since we commonly think that the subject of intellection and the subject of sensation are the same. Chapters 5 and 6 turn to the problem of knowledge and divine illumination, presenting various solutions to another puzzle: while for certainty and knowledge proper we need stability of objects and subjects, in our current life we seem to have neither. Finally, chapters 7 and 8 discuss some issues related to habits and virtues—especially regarding the role they play in relation to powers—and the problems arising from the theological thesis that some of these virtues are supernaturally infused. [End Page 662]The greatest strength of the book is Adams’s almost ruthless way of getting to the bottom of things: she sees where certain seemingly innocuous claims eventually lead and chases disagreements to their ultimate source—which can be a rather difficult task in the case of the authors under consideration, who share a basic theological outlook as well as a broadly speaking Aristotelian background. This ruthlessness makes the discussion of these otherwise relatively well-known issues unique and fascinating. Thus, in chapter 2, we can see how the seemingly niche question of self-actuation led to broader disagreements between Henry of Ghent, Godfrey of Fontaines, and Duns Scotus on the matter of free will and the basic nature of causal powers. Similarly, in chapter 3, we see how the question of the essential relationality of powers led to remarkably different views concerning the number of distinct powers or even the number of distinct substantial forms.Disagreements between the discussed authors come in many forms and from many sources. Thus, already in the first chapter, we glimpse a disagreement between Aquinas and Scotus on the adequate object of powers, which ultimately points to their deeper disagreement regarding how to define powers in the first place. Similarly, chapter 6 leads us to an exhilarating search for the roots of the disagreement regarding the question of divine illumination: while it is well known that Henry of Ghent thinks that some divine illumination is necessary... (shrink)

While the question of whether angels are composed of matter and form, may seem, to the modern reader, somewhat odd, medieval thinkers saw it as a genuine puzzle. On the one hand, angels are purely intellectual creatures, which, according to some (perhaps most famously Aquinas), seems to imply that they are altogether devoid of materiality. On the other hand, however, angels are capable of change, which, according to the broadly-speaking Aristotelian framework, seems to imply an underlying material substrate. This paper (...) traces the views of some early fourteenth-century Franciscan texts, according to which angels are material: the Disputed questions by Gonsalvus of Spain, a De Anima question-commentary sometimes attributed to the early Duns Scotus, and the Sentences commentaries of Peter of Trabibus and of Peter Auriol. As will be seen, the question of angelic materiality gave ample opportunity for these thinkers to elaborate on what they meant exactly by ‘matter’, and to hint at the ways in which this metaphysical principle is related to other important metaphysical notions in the neighborhood, such as change, corporeity, or potency. (shrink)

In this paper, I consider Richard Rufus’ account of generation and corrup- tion. This is a fundamental metaphysical question in the Aristotelian framework. Given that there are things that are corruptible (such as trees and cats and the human body), and things that are incorruptible (such as the celestial bodies and angels), what is it that makes one one, and the other the other? In other words, what is the ultimate explanation (in Rufus' terminology, the principle or principles) of corruptibility (...) and incorruptibility? Do corruptible and incorruptible things have the same principles – the same fundamental metaphysical constitution – or are their principles different? Richard Rufus was among the first ones lecturing on Aristotle’s _Metaphysics_ at the University of Paris. He addresses these questions in book 4 (Gamma), lectio 1, question 2 of his longer commentary on Aristotle’s work (the _Scriptum_), which will provide the main textual basis of this paper. The other textual basis is an anonymous commentary on Aristotle’s _On generation and corruption_, found in Oxford, Corpus Christi MS 119, whose treatment of these issues is remarkably similar to Rufus’. As I show, we can learn a great deal about Rufus’ general metaphysical commitments by looking at this particular question, especially concerning his view of prime matter and his view of the qualities of the resurrected bodies. (shrink)

The three books reviewed here concern some interrelated elements of Thomas Aquinas' metaphysics: his general theory of efficient causation, his metaphysics of the human act, and his theory of virtu...