This paper is a case study of how a few short lines in two of Aristotle’s logical works were read in the thirteenth century. I shall begin with a quick look at Aristotle’s own remarks about equivocation in the Categories and the Sophistical Refutations, as they were transmitted to the West by Boethius’s translations. I shall continue with an analysis of the divisions of equivocation and analogy to be found in an anonymous commentary, on the Sophistical Refutations written in Paris (...) between 1270 and 1280. I have chosen this author’s work to focus on, because it offers a remarkably full account which brings together the elements found in many other logical works from the second half of the thirteenth century. In the course of my analysis I shall attempt to show the part played by four different sources: the Greek commentators of late antiquity; the new translations of Aristotle’s Physics and Metaphysics; the reception of Arabic works, particularly the commentaries of Averroes; and new grammatical doctrines, notably that of modi significandi. At the same time, I hope to throw some light on the development of the doctrine of analogy as it was understood by late thirteenth-century logicians. (shrink)

The Necker cube and the productive class of related stimuli involving multiple depth interpretations driven by corner-like line junctions are often taken to be ambiguous. This idea is normally taken to be as little in need of defense as the claim that the Necker cube gives rise to multiple distinct percepts. In the philosophy of language, it is taken to be a substantive question whether a stimulus that affords multiple interpretations is a case of ambiguity. If we take into account (...) what have been identified as hallmark features of ambiguity and look at the empirical record, it appears that the Necker cube and related stimuli are not ambiguous. I argue that this raises problems for extant models of multistable perception in cognitive neuroscience insofar as they are purported to apply to these stimuli. Helpfully, similar considerations also yield reasons to suggest that the relevant models are well motivated for other instances of multistable perception. However, a different breed of model seems to be required for the Necker cube and related stimuli. I end with a sketch how one may go about designing such a model relying on oscillatory patters in neural firing. I suggest that distinctions normally confined to the philosophy of language are important for the study of perception, a perspective with a growing number of adherents. (shrink)

Descartes’ physics is dependent on his metaphysics, which is to say, on knowledge of the nature of God and of the human soul. This is clear throughout Descartes’ work, but it is especially so in th...

In 1498 Cajetan published a short book, On the Analogy of Names, which is often regarded as a masterly summary of Aquinas's doctrine of analogy. It opens in the very first paragraph with an attack on three views of the concept of being (ens): first, that it is a disjunction of concepts; second, that it is an ordered group of concepts; and third, that it is a single, separate concept which is unequally participated by substances and accidents. A number of (...) questions immediately spring to mind. Why are concepts being discussed when analogy is said by Cajetan to be a theory of language? What is meant by ‘concept’? Who held the views under attack and why? So far as I can tell, the extensive literature on both Aquinas and Cajetan offers no satisfactory answers to these questions. (shrink)

Modern commentators recognize the irony of Aristotle’s Categories becoming a central text for Platonic schools. For similar reasons, these commentators would perhaps be surprised to see Aquinas’s In VII Metaphysics, where he apparently identifies the secondary substance of Aristotle’s Categories with a false Platonic sense of “substance” as if, for Aristotle, only Platonists would say secondary substances are substances. This passage in Aquinas’s commentary has led Mgr. Wippel to claim that, for Aquinas, secondary substance and essence are not the same (...) thing and that Aristotle’s notion of essence is absent from the Categories. This paper—by closely analyzing the apparently contradictory divisions of “substance” in Aquinas’s In V and VII Metaphysics—shows that essence and secondary substance are not altogether distinct for Aquinas. Moreover, when the Categories is viewed by Aquinas as a work of logic, it is found largely to cut across the disputes between Platonism and Aristotelianism. (shrink)

Eckhart's interest in semantics has thus far been overlooked in literature probably because no extensive and sistematic treatment is found in his corpus. Yet, his views in this field deserve attent...

Le langage, la signification, la référence ont fait l’objet d’une grande attention au Moyen Âge, de la part des spécialistes des arts du langage. Pourtant, ils n’ont quasiment pas lu Augustin. Les théologiens, par contre, ont tiré grand profit des analyses augustiniennes. Henri de Gand a lu le De dialectica, en articulant autour de ce petit traité les autres textes d’Augustin portant sur le langage et les signes, afin d’élaborer une théorie du « langage vocal », préliminaire à toute réflexion (...) sur les noms divins, l’ineffabilité, l’analogie ou la propriété des noms. Ces textes forment également le socle des analyses élaborées par les théologiens sur le « parler des anges ». Par ailleurs, les chapitres sur les signes sacramentels doivent à la pensée augustinienne une analyse du signe, tirée du De doctrina christiana. Les théologiens insistent sur le caractère doublement relationnel du signe : signe de quelque chose, signe pour quelqu’un. Le caractère intentionnel de la prononciation de la formule du baptême ou du mariage est traité à partir des opuscules consacrés au mensonge ( De mendacio, Contra mendacium ). L’analyse de la causalité sacramentelle, et particulièrement celle de la causalité conventionnelle fondée sur le pacte, se construit sur la notion augustinienne de consensus, repensée dans le cadre d’une réflexion sur les signes magiques par Guillaume d’Auvergne, mais également sur la théorie de la relation telle qu’elle est élaborée dans le De Trinitate. Roger Bacon, qui fut maître ès arts avant de devenir franciscain, saura lire ces analyses des théologiens, et, en articulant les sources augustiniennes avec les sources logico-grammaticales utilisées par les Artistae, produire une théorie générale des signes. (shrink)

Metaphysics and ethics are two distinct fields in academic philosophy. The object of metaphysics is what is, while the object of ethics is what ought to be. Necessitarianism is a modal doctrine that appears to obliterate this neat distinction. For it is commonly assumed that ought (at least under normal circumstances) implies can. But if necessitarianism is true then I can only do what I actually do. Hence what I ought to do becomes limited to what I in fact do. (...) This is one widespread way of construing the danger that necessitarianism poses for ethics. There is, however, another way in which this collapse of what is with what ought to be can be construed. One could think of what is as already being what ought to be, of the two being one. On this picture, everything that is, is already valuable. In this thesis I explore the theory that being is intrinsically valuable. I do so by investigating the philosophy of perfection present in the works of the early modern rationalist Spinoza. For in his philosophy of perfection, I argue, we find being and value to be perfectly aligned. Hence, my reading challenges a widespread interpretation, according to which (ontological) perfection is divested of normativity in Spinozism. The position that all being is intrinsically valuable since it is perfect may be thought to be incompatible with human perfectionism. For what room can there be for human progress toward an ideal of perfection if all that exists, is necessarily perfect? The goal of the thesis is to respond to this question by providing a systematic interpretation of the metaphysics of human perfectibility in Spinoza’s philosophy. In order to achieve this goal, I undertake two tasks. First, I examine Spinoza’s multi-faceted philosophy of perfection. I distinguish between ontological and teleological perfection. Moreover, I argue that since Spinoza maintains that everything is perfect to the extent that it is, perfection shoulders the role of a transcendental within his system. In order to highlight the normative significance of transcendental perfection, I compare Spinoza’s thought with the transcendental theory of the good in Thomas Aquinas. In addition, I distinguish between ontological and speculative perfection. Speculative perfection is conscious awareness of ontological perfection. Second, I show how infinity plays an essential role in Spinoza’s ethics by indicating how we, by availing ourselves of this notion, are able to acquire a perspective on reality from which its ontological perfection may be discovered. On this basis, I am able to demonstrate the (relatively understudied) ethical and soteriological importance of Spinoza’s conception of infinity. I argue that it is because (a) Spinoza’s ideal of human perfection is speculative, and because (b) one will be able to establish the (ontological) perfection of things by deducing it from the divine essence only when one considers this essence absolutely infinite, that (c) the absolute infinity of the divine essence plays a significant role in Spinoza’s account of human perfection as consisting in conscious awareness of the value of all being. (shrink)

Ofrecemos la primera traducción castellana de las primeras tres cuestiones del comentario de Juan Duns Escoto a las Categorías de Aristóteles. En ellas, el franciscano distingue el subiectum del tratado aristotélico bajo el concepto lógico de «categoría», fundando la unidad de su tratamiento sobre la unidad de dicho concepto. Para tal efecto, Escoto distingue el estudio propiamente lógico de las categorías, tanto de su estudio lingüístico, como de su estudio por parte del metafísico, al menos en esta primera etapa de (...) su pensamiento. (shrink)