Pierre Bayle shows that, in order to avoid devastating objections, materialism should postulate that the property of thinking does not emerge from certain material combinations but is present in matter from the start and everywhere—a hypothesis recently revived and labelled “panpsychism”. There are reasons for entertaining the idea that Bayle actually considers this enhanced materialism to be tenable, as it might use the same line of defence that Bayle outlined for Stratonism. However, this would lead to a view similar to (...) Locke’s superaddition theory, and I contend that such cannot be Bayle’s position because he embraces the Cartesian principle that each substance has only one principal attribute. This makes untenable, in his eyes, any system that conjoins thought with matter in the same simple substance. By contrast, this makes clear which kinds of metaphysics and epistemology panpsychists need to adopt to defend their view. (shrink)

The problem of the intensification and remission of qualities was a crux for philosophical, theological, and scientific thought in the Middle Ages. It was raised in Antiquity with this remark of Aristotle: some qualities, as accidental beings, admit the more and the less. Admitting more and less is not a trivial property, since it belongs neither to every category of being, nor to every quality. Rather it applies only to states and dispositions such as virtue, to affections of bodies such (...) as heat and sweetness, and to affections of soul such as anger. However, the property of admitting more and less was a matter of importance for the qualitative physics that had reigned up to about the time of Descartes, a physics which was concerned with concepts such as heat, coldness, lightness, heaviness, and so on. (shrink)

La solution de Thomas d’Aquin au problème de l’intensification des qualités souffre d’une certaine instabilité et, dans la génération suivante, a été disloquée par les différentes contraintes qu’elle tentait de concilier. Cet article explore les réponses apportées par Gilles de Rome, Godefroid de Fontaines, Pierre d’Auvergne et Thomas de Sutton. Introduite par Godefroid, mais développée par Sutton, la notion de mode va jouer un rôle très important. La solution de Sutton, particulièrement, invite à une comparaison avec la théorie des modes (...) intrinsèques chez Duns Scot. (shrink)

The medieval notion of instrumental cause is not limited to what we call today “instruments” or “tools.” It extends way beyond the realm of technology and includes natural entities, for instance, the accidents by which a substance acts on another substance, sensible species in the air acting on a visual faculty, sacraments, bodily organs, and sometimes creatures with respect to God’s action. In all these cases, instrumental causes, like secondary causes in general, are subordinated to a principal cause and contribute (...) to its action and effects. However, the manner in which they do so makes them different from regular secondary causes, and the specifics are not easy to pinpoint. At the occasion of discussions about creation ex nihilo and sacraments, John Duns Scotus challenges Thomas Aquinas’s theory of instrumental causality. Whereas Aquinas does not strongly distinguish between artifacts and natural agents, and postulates a complex superposition of layers of causation, Scotus offers a novel view that clearly separates artificial instrumentality and natural instrumentality, and in both cases explains causation with great economy. Scotus’s in-depth discussion has far-reaching implications. It completely transforms the understanding of instrumental causality in general. (shrink)

An important step in In Pierre Bayle’s defense of religious tolerance is to refute St Augustine’s claim that heretics who refuse to convert to the true faith do so out of ill will. This claim legitimizes, for Augustine and his followers, the application of temporal sanctions to those heretics, in order to offset their wicked inclination and restore their free will. To counter this view, Bayle uses the theological notions of invincible ignorance and dutiful erroneous conscience, elaborated during the Middle (...) Ages. However, these notions had a very restricted scope, which needed to be extended to so-called heretical beliefs. I show how two early modern scholastics, the Jesuits Gabriel Vázquez and Rodrigo Arriaga, have prepared this evolution and have paved the way for Bayle's denunciation any form of coercion in religious matters. (shrink)

On the question of the intensio/remissio formarum, Giles, while sharing Thomas Aquinas’s view’s main tenets, develops a very different theory - in fact, a theory that is unique, and deeply “aegidia...

Due to his innatist theory, James of Viterbo brings original answers to a number of late-thirteenth century questions concerning cognition. While he maintains a certain distinction between the soul and its faculties, and among these faculties, he rejects the Aristotelian distinction between agent and patient intellects. Thanks to its predispositions to knowing, the mind is able to be an agent for itself. Correlatively, James rejects the usual conception of abstraction. Neither does the intellect act on the phantasms, nor the phantasms (...) on the intellect. The intellect simply actualizes a conceptual scheme at the occasion of adequate sensory representations. Since the innate predispositions are the intrinsic principles of cognitive acts, James maintains with Giles of Rome the notion of intelligible species. But he agrees with Godfrey of Fontaines that an act of intellection is nothing else than the fully actualized species itself. He also concedes to Henry of Ghent that the form of an intelligible object need not be ontologically received in the intellect, but can just have an “objective” presence. Finally, thanks again to his theory of predispositions, he has an easy solution to the vexed problems of the knowledge of substance essences and of the self. (shrink)

James of Viterbio is one of the rare medieval authors to sustain a thoroughly innatist philosophy. He borrows from Simplicius the notion of idoneitas (aptitude, predisposition) so as to ground a cognition theory in which external things are not the efficient and formal causes of mental acts. A predisposition has the characteristic of being halfway between potentiality and actuality. Therefore, the subject that has predispositions does not need to be acted upon by another thing to actualize them. External things only (...) “incline” the mind to make use of a stock of cognitive schemes. Consequently, in order to avoid an infinite regress James must adopt innatism. Following the lead of late Neoplatonism, he goes as far as including, not only conceptual schemes, but also perceptual schemes among the inbuilt stock. As a result, James’s theory, while it echoes certain preoccupations and themes that are common in the thirteenth century, proves to be one of a kind. (shrink)

La conception malebranchiste de la liberté est originale. Malebranche ne croit pas en une liberté d’indifférence absolue, c'est-à-dire en une capacité d’opérer un choix indépendamment de toute motivation. Il ne croit pas non plus que nous puissions indifféremment choisir entre deux motivations de force inégale : au moment où on se détermine, le bien le plus grand (du moins selon l’apparence) l’emporte. La liberté réside seulement dans le fait que l’on n’est pas obligé de se déterminer : nous pouvons toujours (...) suspendre notre consentement. Cette conception est exposée à des objections que Pierre Bayle a formulées et qui tentent de la mettre en contradiction avec d’autres thèses de Malebranche : son occasionalisme, sa théorie de la création continuée, l’obscurité de l’âme à elle-même, sa théologie des voies de l’action divine. Nous discuterons ces objections et verrons si Malebranche est en mesure de leur résister. (shrink)