13th/14th Century Philosophy

This essay discusses five main topoi in the Divine Comedy through which teachers might encourage students to explore the question of the Divine Comedy’s treatment of philosophy. These topoi are: (1) The Divine Comedy’s representations in Inferno of noble pagans who are allegorically or historically associated with philosophy or natural reason; (2) its treatment of the relationship between faith and reason and that relationship’s consequences for the text’s understanding of the respective authoritativeness of theology and philosophy; (3) representations in the (...) Divine Comedy that relate to the question of the practical value of philosophical (not to mention theological) speculation; (4) the text’s treatment of the respective merits of practical and contemplative activities; and (5) its implicit defense of philosophy’s authority with respect to ethical and political questions. (shrink)

Drawing primarily upon Dante’s three major philosophical treatises (De vulgari eloquentia, Convivio, and Monarchia), this essay explores how Dante’s ethico-political philosophy operates within the crucial tension between the phenomenology of time as the condition for the possibility of human moral development and yet also as, metaphysically speaking, the privation and imitation of eternity. I begin by showing that, in the De vulgari eloquentia, Dante’s understanding of the poetic and rhetorical function of the illustrious vernacular is tied to his political philosophy (...) in a way that depends upon a rich but ultimately unresolved tension between (a) the demand that only an atemporal, unchanging vernacular would be suitable for the tasks of universal monarchy and (b) the recognition that only a temporal, localized, and changing illustrious vernacular could possibly bring about the existence of the universal monarchy. In the second half of the essay, I will turn to Dante’s treatment of the providential grounding for the independence of spiritual and temporal authority in Convivio and Monarchia. I will argue that Dante’s understanding of divine providence provides common justification for the temporal and spiritual authorities whose independence he otherwise insists upon. Finally, drawing on the letter to Cangrande della Scala (the authorship of which is disputed), I will discuss how, for Dante, the providential ground for the legitimacy of temporal authority can only be discerned through the allegorical interpretation of history itself. In light of my discussion of these themes in Dante’s political philosophy and its dependence on his understanding of divine providence, I will conclude with a brief reflection on how Dante’s understanding of divine providence might help us better appreciate important aspects of the neglected legacy of Renaissance humanism in the history of early modern philosophy. (shrink)

Dante’s engagement with philosophy cannot be studied apart from his vocation as a writer, in which he sought to raise the level of public discourse by educating his countrymen and inspiring them to pursue happiness in the contemplative life. He was one of the most learned Italian laymen of his day, intimately familiar with Aristotelian logic and natural philosophy, theology, and classical literature. He is, of course,most famous for having written the Divine Comedy, but in his poetry as well as (...) his philosophical treatises and other writings, he freely mingles and synthesizes philosophical and theological language as well extensive references and allusions to scripture and classical and contemporary poetry. While his contributions to world literature and other artistic genres are universally acknowledged, his theological imagination has also remained influential from his own time to the present day. His philosophical legacy, by comparison, remains more difficult to assess, though his writings provide, at the very least, a powerful tool for the study of the landscape of late medieval and Renaissance philosophy. (shrink)

A review of Maria Luisa Ardizzone's Reading as the Angels Read: Speculation and Politics in Dante’s Banquet. Toronto: University of Toronto Press, 2016. xii 1 454 pp. $95.

A review of Paul Stern's Dante's Philosophical Life: Politics and Human Wisdom in Purgatorio (University of Pennsylvania Press, 2018).

This issue is dedicated to consciousness in medieval and early modern philosophy of mind. It aims to shed new light on the continuities and innovations during the transition from medieval to early modern philosophy of mind. The four papers, by Sonja Schierbaum, Daniel Schmal, Oliver Istvan Toth, and Philipp N. Müller, focus on consciousness and, more specifically, on one of its less frequently considered aspects: memory.

Buridan holds that the proper subject of psychology (i.e., the science undertaken in Aristotle’s De Anima) is the soul, its powers, and characteristic functions. But, on his view, the science of psychology should not be understood as including the body nor even the soul-body composite as its proper subject. Rather its subject is just “the soul in itself and its powers and functions insofar as they stand on the side of the soul". Buridan takes it as obvious that, even thus (...) narrowly construed, such a science is possible. To the extent that this science includes the human or intellective soul, however, Buridan’s claim regarding its possibility is far from obvious. After all, like most of his contemporaries, Buridan takes the human soul to be immaterial. Thus, he readily admits that “the intellect cannot be sensed” and its operations are likewise inaccessible to the senses. Yet, on Buridan's broadly empiricist theory of knowledge, all (human) knowledge, including knowledge of the intellect or intellective soul, takes its start in the senses. How, then, is a science of the human soul possible? What is the nature or source of our knowledge of the intellect? In this paper, I reconstruct Buridan's answer to these questions. -/- My discussion divides roughly into two parts. In the first, I set out the main elements of Buridan’s account of how we come to cognize the intellect, focusing on what he says about the genesis of our concept of the intellect. I then consider his account of our cognition of our own intellective states. As the discussion in part one make clear, Buridan holds that our concepts of intellect and of intellective states are both derived (inferentially) from subjective “experience” of our own states and rational activities. In part two, therefore, I try to elucidate Buridan’s notion of experience. Ultimately, I argue that it is a non-conceptual, non-discursive mode of self-awareness. I suggest, moreover, that it might best be understood in terms of our own notion of phenomenal consciousness. On the interpretation I advance, then, it turns out that, for Buridan, our concept of the intellect itself and, hence, the science of (human) psychology in general, is ultimately grounded in phenomenal experience of our own intellective states. (shrink)

On the dominant interpretation, Ockham is an externalist about mental content. This reading is founded principally on his theory of intuitive cognition. Intuitive cognition plays a foundational role in Ockham’s account of concept formation and judgment, and Ockham insists that the content of intuitive states is determined by the causal relations such states bear to their objects. The aim of this paper is to challenge the externalist interpretation by situating Ockham’s account of intuitive cognition vis-à-vis his broader account of efficient (...) causation. While there can be no doubt that intuitive states are causally individuated, I argue that, given Ockham’s broader theory of efficient causation (on which causation turns out to be an internal relation), this very fact entails that the content of such states is determined by factors internal (rather than external) to the states themselves. (shrink)

The medieval reception of Aristotle’s theory of animals was rich and multifaceted and included reflection on his psychological theories but also, for instance, his claim that humans are “political animals.” A particular problem for the medievals was demarcating animals, that is, specifying the dividing line between animal and human. This is especially the case given the sophisticated capacities they ascribe to animals, while still retaining a hard and fast distinction between humans as rational and animals as irrational. Authors discussed in (...) this chapter include Albert the Great, Peter Olivi, and Roger Bacon, who are examined for their psychological and metaphysical accounts of animals. It is also asked to what extent these theories affected moral evaluation of animals and what humans owe to them ethically speaking. (shrink)

Medieval authors generally agreed that we have the freedom to choose among alternative possibilities. But most medieval authors also thought that there are situations in which one cannot do otherwise, not even will otherwise. They also thought when willing necessarily, the will remains free. The questions, then, are what grounds the necessity or contingency of the will’s acts, and – since freedom is not defined by the ability to choose – what belongs to the essential character of freedom, the ratio (...) libertatis. This article studies medieval theories of freedom without choice from William of Auxerre to William of Ockham and their background in Augustine, Anselm of Canterbury, and Bernard of Clairvaux. (shrink)

The paper examines the definitions of the concept ‘philosophy’ resp. ‘the philosopher’ in Florentine renaissance Platonism, namely Marsilio Ficino and his scholar Francesco di Zanobi Cattani da Diacceto. Following Socrates and Pythagoras, Ficino distinguishes between mundane philosophy and divine sapientia. In contrast to his teacher, Diacceto’s Aristotelism rejects the Pythagoreanism and connects philosophy with sapientia. In order to show how the differences between Ficino and Diacceto emerge, three more contemporaries are taken into consideration: Christoforo Landino, Angelo Poliziano and Giovanni Pico (...) della Mirandola. As a result of this examination, it can be said that the definition of ‘philosophy’ in Florentine renaissance Platonism tends either to Pythagoreism or to Aristotelism or to both. Closely connected with the debate on philosophy are topics and maxims such as meditatio mortis, theologia negativa, docta ignorantia, scio ne scio, nosce te ipsum, ne quid nimis et al. (shrink)

The present dissertation concerns cognitive psychology—theories about the nature and mechanism of perception and thought—during the High Middle Ages (1250–1350). Many of the issues at the heart of philosophy of mind today—intentionality, mental representation, the active/passive nature of perception—were also the subject of intense investigation during this period. I provide an analysis of these debates with a special focus on Durand of St.-Pourcain, a contemporary of John Duns Scotus and William of Ockham. Durand was widely recognized as a leading philosopher (...) until the advent of the early modern period, yet his views have been largely neglected in the last century. The aim of my dissertation, then, is to provide a new understanding of Durand’s cognitive psychology and to establish a better picture of developments in cognitive psychology during the period. -/- Most philosophers in the High Middle Ages held, in one form or another, the thesis that most forms of cognition (thought, perception) involve the reception of the form of the object into the mind. Such forms in the mind explain what a given episode of cognition is about, its content. According to what has been called the conformality theory of content, the content of our mental states is fixed by this form in the mind. Durand rejects this thesis, and one of the primary theses that I pursue is that Durand replaces the conformality theory of content with a causal theory of content, according to which the content of our mental states is fixed by its cause. When I think about Felix and not Graycat, this is to be explained not by the fact that I have in my mind the form of Felix and not Graycat, but rather by the fact that Felix and not Graycat caused my thought. -/- This is both a controversial interpretation and, indeed, a controversial theory. It is a controversial interpretation because Durand seems to reject the thesis that objects are the causes of our mental states. In the first half of the present dissertation, I argue that Durand does not reject this thesis but he rejects another nearby thesis: that objects as causes give to us ‘forms’. On Durand’s view, an object causes a mental state even though it does not give to us a new ‘form’. In the second half of the dissertation I defend Durand’s causal theory of content against salient objections to it. (shrink)

Durand of Saint-Pourçain's earliest treatment of cognitive habits is contained in his Sentences Commentary, Book 3, Distinction 23. In the first two questions, he discusses the ontological status of habits and their causal role, establishing his own unique view alongside the views of Godfrey of Fontaines and Hervaeus Natalis. What follows is the Latin text and an English translation of Durand's Sentences (A/B) III, d. 23, qq. 1-2. -/- .

This article considers Aquinas' doctrine of predestination as an eternal reality in God in light of its temporal realization in time by the incarnation of the eternal Son. In particular, Aquinas' repeated recourse to the ratio of the divine goodness as the motive of predestination is documented in conjunction with his teaching on the fittingness of the incarnation. In this light, the relation of the natural sonship of Christ to the grace of adoption is developed by Aquinas as the temporal (...) realization of the eternal reality of predestination in God. (shrink)

This study brings light to the concepts of State and Government in the thought of Marsilio de Padua pointing out to profoundly modern institutions present in the reflection of this medieval philosopher. We attempt to show that Marsilio de Padua reflects based on Aristotle´s categories, but proposes a State and Government conception different from that common place of medieval politics as he insists on the need of the popular consent as a criterion of political legitimacy. -/- O estudo explicita os (...) conceitos de Estado e de Governo no pensamento de Marsílio de Pádua apontando as intuições profundamente modernas presentes na reflexão desse filósofo medieval. Procuramos mostrar que Marsílio reflete com categorias aristotélicas, mas propõe uma concepção de Estado e de Governo que se distancia do lugar comum da reflexão política medieval ao insistir na necessidade do consentimento dos súditos como critério de legitimidade política. (shrink)

I argue that medieval solutions to the limit decision problem imply four-dimensionalism, i.e. the view according to which substances that persist through time are extended through time as well as through space, and have different temporal parts at different times.

The Scientific Revolution was far from the anti-Aristotelian movement traditionally pictured. Its applied mathematics pursued by new means the Aristotelian ideal of science as knowledge by insight into necessary causes. Newton’s derivation of Kepler’s elliptical planetary orbits from the inverse square law of gravity is a central example.

In general historical treatments, one often encounters the idea that Kepler’s and Newton’s discovery of elliptical planetary orbits marked a decisive break with tradition and definitively undermined any possibility of an Aristotelian approach to physics and astronomy. Although Aristotle had no understanding of gravity, I want to demonstrate that elliptical orbits were a refinement of earlier models and that one can produce an Aristotelian account of elliptical orbits once one corrects his crucial mistake about gravity. One interesting side-effect of this (...) straightforwardly Aristotelian approach is that it eliminates the empty, second focal point around which any elliptical system revolves. I should emphasize that the present paper is not intended to contradict, oppose, or replace any aspect of contemporary mathematical physics or astronomy. The point is not to propose a new scientific theory—we all know that planetary orbits are elliptical—but to demonstrate that metaphysical Aristotelianism is more versatile than is generally supposed. (shrink)

In the first half of the 15ᵗʰ century there was a coherent philosophical system of teaching at the Jagiellonian university, so-called ars vetus, concerning the interpretation of three treatises: Aristotle’s Categories and Hermeneutics and Porphyry’s Isagoge. The question-commentaries on the Categories that have been preserved in several manuscripts show astonishing similarity in solving individual problems – there are three copies of Benedict Hesse’s commentary and one copy of Paul of Pyskowice’s work, moreover, in BJ 1941 there is an anonymous commentary (...) on the Categories that is also very close to the ones mentioned before, to prove that fact. This paper, discussing the four-fold division of opposition in those Polish commentaries on Aristotle’s Categories, is part of the studies on the manuscript material that has not been critically edited yet. The main goal is to show the philosophical views on contraries, contradictories, relatives and possession and privation in a wider perspective, comparing the Polish commentaries’ doctrine with the authoritative text itself. (shrink)

This article considers Aquinas' doctrine of predestination as an eternal reality in God in light of its temporal realization in time by the incarnation of the eternal Son. In particular, Aquinas' repeated recourse to the ratio of the divine goodness as the motive of predestination is documented in conjunction with his teaching on the fittingness of the incarnation. In this light, the relation of the natural sonship of Christ to the grace of adoption is developed by Aquinas as the temporal (...) realization of the eternal reality of predestination in God. (shrink)

_ Source: _Volume 54, Issue 4, pp 286 - 310 In _De somno et vigilia_, Aristotle states that sleep is an incapacitation of the first sense organ that occurs when the capacity for sensation has been exceeded. In the same treatise, however, Aristotle also mentions the phenomenon of motion and other waking acts performed in sleep and claims that sense perception is a necessary condition for such acts to occur. When the medieval exegesis on the _Parva naturalia_ evolved in the (...) thirteenth century, how Aristotle’s remark on motion in sleep could be reconciled with his definition of sleep as an incapacitation of the senses became one of the most frequently discussed problems. This article analyzes the theories on this subject in the most influential commentaries on Aristotle’s treatises on sleep and dreaming in the thirteenth century. (shrink)

_ Source: _Volume 54, Issue 4, pp 255 - 285 This paper examines the authorship and reception of the medieval translation of Sextus Empiricus’ _Outlines of Pyrrhonism_. It is shown that its traditional ascription to Niccolò da Reggio cannot be maintained, because the translation must have circulated already in the late 1270s. Its author is difficult to identify: the closest stylistic parallels are found with the anonymous translator of Aristotle’s _De partibus animalium_. With Alvaro of Oviedo and the otherwise unknown (...) Johannes de Peretis two early readers can be named. Though a copy was accessible in Viterbo at this time and another copy possibly travelled around in Italy in the 1320s, no philosophical or other impact can be determined. A single reference is found in Peter of Auvergne’s _Quaestiones_-commentary on Aristotle’s _Politics_. Its origin is difficult to assess. (shrink)

_ Source: _Page Count 24 Although the fourteenth-century Franciscan theologian Walter Chatton did not comment on Aristotle’s _Categories_, he discussed a number of issues relating to categories in his _Lectura_ on the _Sentences_. The author examines his response to the question ‘How many categories are there?’ He gives three methods by which we can arrive at the number of the categories, the last two of which seem to meet his approval. Chatton advocates a strong isomorphism between ontology and semantics: the (...) number of the categories is determined by and equal to the number of classes of things. (shrink)

The pantheon of classical liberal thinkers must honor the memory of one brilliant mathematician, scientist, and debunker of superstitious beliefs, the sound-money advocate Nicole Oresme. Although his opposition to the recoinage practices of the French monarchy was not unprecedented in the fourteenth century, Oresme must be credited with anticipating the “rational expectations” in economics when he distinguished quite forcefully between “preannounced debasement” and “secret debasement” and their effects on the distribution of wealth. Oresme explains that the king should not practice (...) secret debasement, and can appear as a pioneer for modern ideas on monetary surprises. (shrink)

This essay investigates Bonaventure’s account of the original state of human nature and his reasons for holding the theory that God created human beingswithout grace in an actual, historical moment. Bonaventure argues that positing a historical moment before grace is more congruent with the divine order, precisely because it emphasizes the distinction between nature and grace and delays the conferral of grace until man’s desire is elicited and his willingness to cooperate in the divine plan made clear. Bonaventure incorporates Aristotle’s (...) teleological view of nature into his thought while managing to avoid a view of nature as autonomous. He grounds nature’s heteronomy in the exigencies of natural desires, which dispose our nature to remain radically and intrinsically orderable to a good that transcends those natural powers. Bonaventure’s theory thus affirms the integrity of nature, while also emphasizing the total gratuity of grace. He thinks human nature is suspended between its own finitude and a radical capacity for the transcendent that waits upon divine agency. (shrink)

In this paper I discuss Albert the Great’s notion of univocal analogy, which he raised in his Commentary on Pseudo-Dionysius’s De divinis nominibus. While other scholars such as Francis Ruello and Alain de Libera have addressed “analogy” as it pertains to Albert, I intend to treat the “univocal” aspect of “univocal analogy” so as to explain how it informs Albert’s teaching on analogy, and how it remains opposed to any pantheistic reduction of God to creature. While my own account remains (...) close to that of Ruello and De Libera, I hope to show how primacy is to be accorded to univocity in such a manner that, in actual reality, for Albert, it is analogy that qualifies univocity rather than vice versa. (shrink)