Was ist eine menschliche Person? Durch welche besonderen Eigenschaften zeichnet sie sich aus? Und wodurch unterscheidet sie sich von einem blossen Lebewesen? Mittelalterliche Autoren widmeten sich mit viel Scharfsinn diesen Fragen, indem sie sich auf drei Dimensionen einer Person konzentrierten. Sie setzten bei der metaphysischen Dimension an, indem sie eine Person als eine individuelle Substanz mit einer rationalen Natur bestimmten. Dies fuhrte sie dazu, diese Substanz genauer zu untersuchen: ihre wesentlichen Bestandteile, ihre Einheit und ihre Identitat uber die Zeit hinweg. (...) Sie beschaftigten sich aber auch mit der psychologischen Dimension, indem sie die Reflexionsfahigkeit als die entscheidende geistige Fahigkeit einer Person analysierten. Zudem berucksichtigten sie die handlungstheoretische Dimension, indem sie festhielten, dass eine Person im Gegensatz zu einem blossen Lebewesen Handlungen hervorbringen kann. Sie betonten sogar, dass sich eine Person frei fur Handlungen entscheiden kann und daher fur sie verantwortlich ist. Dieses Buch, das sich auf Theorien des 13. und 14. Jahrhunderts konzentriert, rekonstruiert die Debatten zu allen drei Dimensionen im historischen Kontext, wertet sie systematisch aus und schlagt dabei auch einen Bogen zu fruhneuzeitlichen und gegenwartigen Diskussionen. Es verdeutlicht, dass im Mittelalter die Grundlagen fur eine philosophische Anthropologie gelegt wurden. (shrink)

Many late medieval Aristotelians assumed that a natural substance has several substantial forms in addition to matter as really distinct parts. This assumption gave rise to a unity problem: why is a substance more than a conglomeration of all these parts? This paper discusses Francisco Suárez’s answer. It first shows that he rejected the idea that there is a plurality of forms, emphasizing instead that each substance has a single form and hence a single structuring principle. It then examines his (...) account of the relationship between matter and form. While accepting the thesis that these two parts are really distinct entities, he claimed that there is a special “mode of union” that binds them together. With this account, he defended the essential unity of a natural substance, but he transformed the program of Aristotelian metaphysics: not substances, but entities and modes inside them, are now the basic building blocks of reality. (shrink)

Die Intentionalitätsproblematik steht nicht nur im Mittelpunkt der heutigen philosophischen und kognitionstheoretischen Debatten. Sie wurde bereits im Mittelalter scharfsinnig diskutiert, ja die scholastischen Autoren prägten als Erste die Fachausdrücke "Intentionalität" und "intentionale Existenz" und entwarfen verschiedene Modelle, um das Rätsel der kognitiven Bezugnahme zu lösen. Dieses Buch stellt fünf einflußreiche Intentionalitätsmodelle vor, die im 13. und 14. Jahrhundert entstanden sind. Dabei werden so unterschiedliche Autoren wie Thomas von Aquin, Petrus Johannes Olivi, Dietrich von Freiberg, Johannes Duns Scotus, Petrus Aureoli, Hervaeus (...) Natalis, Wilhelm von Ockham und Adam Wodeham berücksichtigt. -/- "Die anschauliche und präzise Art, in der Perler mit den Denkern des Mittelalters und der Gegenwart argumentierend spricht, lockert seine gestrenge Gedankenarbeit auf, ohne darüber hinwegzutäuschen, daß dieses Buch eine Reihe von Entdeckungen und Klärungen enthält, wie sie auf diesem schwierigen Feld selten vorkommen. Er bietet eine Meisterleistung an Konzentration und Darstellungskunst. Wenige Bücher zur Philosophie des Mittelalters vereinen so glücklich wie dieses geschichtlichen Takt und Problemsinn." Kurt Flasch -/- The problem of intentionality is not only at the centre of today's philosophical and cognitive theory debates. It was already discussed astutely in the Middle Ages; indeed the scholastic authors were the first to coin the technical terms "intentionality" and "intentional existence" and designed various models to solve the riddle of cognitive reference. This book presents five influential models of intentionality that emerged in the 13th and 14th centuries. It takes into account authors as different as Thomas Aquinas, Petrus Johannes Olivi, Dietrich von Freiberg, Johannes Duns Scotus, Petrus Aureoli, Hervaeus Natalis, Wilhelm von Ockham and Adam Wodeham. Upun reading this book, Kurt Flasch remarks that it "contains a wealth of discoveries and clarifications that are rare in this difficult field. [Perler] offers a masterly performance of concentration and art of representation [...]. Few books on medieval philosophy succeed so thoroughly in uniting historical and philosophical perspicacity such as this one". (shrink)

This volume analyses ancient and medieval theories of intentionality in various contexts: perception, imagination, and intellectual thinking.

Thomas von Aquin reagierte im 13. Jahrhundert als erster europäischer Theologe auf den Occasionalismus, der sich im arabisch-islamischen Denken vom 8. bis zum 12. Jahrhundert entwickelte, und begann damit die bis in das 17. Jahrhundert fortdauernde Auseinandersetzung mit diesem Thema. Die Autoren stellen in chronologischer Reihenfolge die gesamte arabisch-islamische und europäische Diskussion vor.

What kind of entities are faculties? How are they related to the soul and to the entire living being? How can they be classified? And in what sense are they responsible for a large variety of activities? This chapter examines these questions, which were extensively discussed by scholastic authors, and focuses on the metaphysical models established by William of Auvergne, Thomas Aquinas, William of Ockham, and Francisco Suárez. It argues that there was no unified scholastic doctrine. While some authors (e.g. (...) Ockham) took the faculties to be mere ways of acting of the soul, others (e.g. Suárez) conceived of them as distinct entities with their own power. The latter theory gave rise to a new model of the soul—a model that presented it as a complex entity with many distinct causes. (shrink)

Zweifel und Gewissheit: Skeptische Debatten im Mittelalter (Philosophische Abhandlungen, Bd. 92).

Like many philosophers in the scholastic tradition, Suárez claims that we cannot cognize anything unless we use a cognitive device, a so-called intelligible species. But how can we produce such a device? And what kind of cognition does it make possible? This chapter examines these questions, paying particular attention to Suárez’s rejection of traditional theories that explained the production of intelligible species by referring to efficient causation. On his view, there can only be a relation of occasional causation: the existence (...) of sensory images is simply an occasion for the intellect to produce intelligible species. This chapter first analyzes this type of causation and then looks at the function of the species. It argues that species are inner representations that make particular things cognitively present. In presenting this view, Suárez breaks with a long tradition that took species to be the product of a process of assimilation of universal forms and paves the way for early modern theories of representation. (shrink)

It seems quite natural that we have cognitive access not only to things around us, but also to our own acts of perceiving and thinking. How is this access possible? How is it related to the access we have to external things? And how certain is it? This paper discusses these questions by focusing on Francisco Suárez’s theory, which gives an account of various forms of access to oneself and thereby presents an elaborate theory of consciousness. It argues that Suárez (...) clearly distinguishes between first-order sensory consciousness and second-order intellectual consciousness. Moreover, Suárez attempts to explain the unity of consciousness by referring to a single soul with hierarchically ordered faculties that is responsible both for first-order and for second-order consciousness. (shrink)

Spinoza never discusses the scenario of radical skepticism as it was introduced by Descartes. Why not? This paper argues that he chooses a preventive strategy: instead of taking the skeptical challenge as it is and trying to refute it, he questions the challenge itself and gives a diagnosis of its origin. It is a combination of semantic atomism, dualism and anti-naturalism that gives rise to radical doubts. Spinoza attacks these basic assumptions, opting instead for semantic holism, anti-dualism and naturalism. This (...) crucial shift of basic assumptions prevents radical skepticism from arising. To be sure, local doubts are still possible, but the possibility of global doubt is ruled out. The paper examines this preventive strategy, situating it in the historical context and building a bridge to more recent anti-skeptical strategies. (shrink)

All medieval philosophers in the Aristotelian tradition agreed that the human intellect is not only able to know other things, but also itself. But how should that be possible? Which cognitive mechanisms are required for self-knowledge? This chapter examines three models that attempted to answer this fundamental question: (i) Thomas Aquinas referred to higher-order acts that make first-order acts and eventually also the intellect itself cognitively present, (ii) Matthew of Aquasparta appealed to introspection, (iii) Dietrich of Freiberg claimed that no (...) special cognitive process is necessary because the intellect is by nature always fully present to itself. An analysis of these three models shows that scholastic philosophers intended to provide an epistemological foundation for the explanation of Socratic self-knowledge. (shrink)

It has often been said that we should enter into a dialogue with thinkers of the past because they discussed they same problems we still have today and presented sophisticated solutions to them. I argue that this “dialogue model” ignores the specific context in which many problems were created and defined. A closer look at various contexts enables us to see that philosophical problems are not as natural as they might seem. When we contextualize them, we experience a healthy alienation (...) effect: we realise that problems discussed in the past depend on assumptions that are far from being self-evident. When we then compare these assumptions to our own, we reflect on our own theoretical framework that is not self-evident either. This leads to a denaturalisation of philosophical problems – in the past as well as in the present. I argue for this thesis by examining late medieval discussions on mental language. (shrink)

The journal publishes exceptional articles in all areas of Western philosophy from antiquity up to contemporary philosophy. The Archiv articles are distinguished by precise argumentation and lucid prose.

This paper examines Elisabeth of Bohemia’s critique of Descartes’ internalist conception of happiness. According to this conception, we can all become happy because we can all make full use of our rational faculties and constantly follow our best judgments. Happiness is nothing but an “internal satisfaction” that arises when we act in accordance with these judgments. Elisabeth challenges this conception by pointing out that it is far too optimistic and that it neglects what is external to our own mind. Quite (...) often, we cannot make full use of our rational faculties because we are in the grip of passions and diseases or because we are under time pressure and can neither make the best decisions nor foresee their consequences. The paper focuses on these two objections, arguing that Elisabeth replaces Descartes’ internalist conception of happiness with a more complex conception that takes both internal and external factors into account. On her view, not only the right use of our rational faculties but also the right conditions for using them are required for obtaining happiness. In defending this view, Elisabeth presents an alternative to Descartes’ position and should therefore be seen as an original thinker engaging in a philosophical debate. (shrink)

The aim of the series Studies in the History of Philosophy of Mind is to foster historical research into the nature of thinking and the workings of the mind. The volumes address topics of intellectual history that would nowadays fall into different disciplines like philosophy of mind, philosophical psychology, artificial intelligence, cognitive science, etc. The monographs and collections of articles in the series are historically reliable as well as congenial to the contemporary reader. They provide original insights into central contemporary (...) problems by looking at them in historical contexts, addressing issues like consciousness, representation and intentionality, mind and body, the self and the emotions. In this way, the books open up new perspectives for research on these topics. (shrink)

Perler, D. Essentialism and Direct Realism: Some Late Medieval Perspectives. Topoi 19, 111–122 (2000).

What am I thinking about? John Duns Scotus and Peter Aureol on intentional objects.

It seems quite natural to explain the activities of human and non-human animals by referring to their special faculties. Thus, we say that dogs can smell things in their environment because they have perceptual faculties, or that human beings can think because they have rational faculties. But what are faculties? In what sense are they responsible for a wide range of activities? How can they be individuated? How are they interrelated? And why are different types of faculties assigned to different (...) types of living beings? The six chapters in this book discuss these questions, covering a wide period from Plato up to contemporary debates about faculties as modules of the mind. They show that faculties were referred to in different theoretical contexts, but analyzed in radically different ways. Some philosophers, especially Aristotelians, made them the cornerstone of their biological and psychological theories, taking them to be basic powers of living beings. Others took them to be inner causes that literally produce activities, while still others provided a purely functional explanation. The chapters focus on various models, taking into account Greek, Arabic, Latin, French, German and Anglo-American debates. They analyze the role assigned to faculties in metaphysics, philosophy of mind and epistemology, but also the attack that was often launched against the assumption that faculties are hidden yet real features of living beings. The short "Reflections" inserted between the chapters make clear that faculties were also widely discussed in literature, science and medicine. (shrink)

Ockham affirms that a human being consists of three really distinct forms that exist in matter, thus defending a «pluralist» position in the debate about the soul. However, he takes a «unitarist» position with regard to the rational soul, claiming that intellect and will are not really distinct. Why does he not admit a plurality of forms in the rational soul as well? And why does he think that the rational soul as a whole is really distinct from the sensory (...) soul? This paper examines these questions, thus analyzing Ockham’s metaphysics of the soul. It pays close attention to his arguments both for a plurality of forms and for the unity of the rational soul. It argues that Ockham carefully distinguishes between forms that are metaphysical parts of a human being, and faculties that are ways of acting of a specific form. This distinction enables him to reject both a radical unitarism that accepts one single form in a human being, and an excessive pluralism that posits as many forms as there are faculties. (shrink)

Ockham developed two theories to explain the intentionality of memory: one theory that takes previously perceived things to be the objects of memory, and another that takes one’s own earlier acts of perceiving to be the objects of memory. This paper examines both theories, paying particular attention to the reasons that motivated Ockham to give up the first theory in favor of the second. It argues that the second theory is to be understood as a theory of double intentionality. At (...) the core of this theory is the thesis that one directly remembers one’s own acts, and indirectly also the objects of these acts. The paper analyzes the cognitive mechanism that makes this double intentionality possible and examines the causal account that Ockham gave for explaining the emergence of acts of remembering. It emphasizes that he accepted nothing more than a causal chain of acts and habits, thereby offering an ontologically parsimonious theory of memory. (shrink)

Leibniz holds that we cannot give an account of the synchronic and diachronic identity of a person without appealing to a substance. This paper analyses his reasons for this anti-Lockean thesis. It first looks at his theory of substance, paying particular attention to his commitment to the Principle of Sufficient Reason: the existence of a well-ordered series of mental states cannot be sufficiently explained without reference to a substance. The paper then examines the distinction Leibniz draws between the substance as (...) the “real person” and the “appearing person” that comes into existence through reflexive consciousness. It argues that there can be no appearing person without a real person and looks at the relationship between these two types of person. Leibniz’s distinction is still relevant because it shows that questions concerning the metaphysical constitution of a person need to be carefully distinguished from questions concerning the psychological construction of a personality. (shrink)

Name der Zeitschrift: Deutsche Zeitschrift für Philosophie Jahrgang: 63 Heft: 3.

Could God Deceive Us? Skeptical Hypotheses in Late Medieval Epistemology.

A comprehensive study of medieval and modern debates surrounding the nature of emotions, this book presents not just a single theory or tradition, but examines Aristotelian, dualist, monist, and even skeptical approaches to emotions. It discusses various cognitive therapies that help us to change or even overcome some emotions.

Does the soul have parts? What kind of parts? And how do all the parts make together a whole? Many ancient, medieval and early modern philosophers discussed these questions, thus providing a mereological analysis of the soul. The eleven chapters reconstruct and critically examine radically different theories. They make clear that the question of how a single soul can have an internal complexity was a crucial issue for many classical thinkers.

Satztheorien. Texte zur Sprachphilosophie und Wissenschaftstheorie im 14. Jahrhundert.

Abstract of the book This volume has three aims. First, historians of philosophy have typically focused on the discussions of the moral relevance of emotions, and with the exception of scholars of ancient philosophy, neglected the place of emotions in cognitive life. This collection of articles refocuses the discussion of emotion in the medieval and early modern periods to their role in cognition. Second, though many have aimed to clarify relationship between the later thinkers and their predecessors with regard to (...) issues in metaphysics and epistemology, there has been very little effort at tracing similar lines of thought about emotion. As a whole, the contributions to this volume serve to begin a discussion about the continuities between medieval and early modern thinking about the emotions. In this regard, there is also a discussion of the emotions of cognitive life of the Renaissance. Though we get only a snapshot of a period of philosophical work often passed over, even this snapshot invites questions about how to weave an intellectual history about accounts of our emotions in our cognitive lives. Finally, attention to the concerns that engage philosophers of the medieval, renaissance and early modern periods can inform the contemporary debate regarding the relationship between emotions, cognition, and reason. The thirteen contributions explore this from the point of view of four key themes: the situation of emotions within the human mind; the intentionality of emotions and their role in cognition; emotions and action; the role of emotion in self-understanding and the social situation of individuals. (shrink)

The notion of idea is a key concept in early modern philosophy. From Descartes seminal works at the beginning of the 17th century to the work of Thomas Reid in the closing years of the 18th century, discussion in theoretical philosophy is dominated by the debate about the core concept of idea. This two-volume textbook introduces eleven key authors from this period. The first volume presents the central texts in modern translation, often new translations based on the source texts. The (...) second volume contains commentaries on each text with a systematic introduction, a line-by-line commentary and a contextualisation of the contents. Thus this textbook provides students of philosophy with a comprehensive overview of the modern discussion of the concept of idea. ". (shrink)

In his Tractatus de secundi intentionibus Hervaeus Natalis claims that an intention, taken in the strict sense, is not a mental entity but a thing qua cognized thing having « objective existence ». Peter Aureol agrees with this thesis, but he denies that one needs to introduce, in addition to this « concrete intention », an « abstract intention ». This article gives a preliminary edition of Aureol’s critique, along with a brief analysis of the controversial issues in the Aureol-Hervaeus (...) debate. (shrink)

Descartes' Ideentheorie ist in der neueren Forschung immer wieder als Ausgangspunkt des neuzeitlichen "way of ideas" dargestellt worden, der in einen verhängnisvollen Repräsentationalismus mündet. Denn Cartesische Ideen scheinen so etwas wie mentale Objekte in einer "inneren Arena" zu sein. Da wir nur zu diesen mentalen Objekten einen unmittelbaren Zugang haben, können wir höchstens auf die Existenz äußerer Objekte schließen, wir können sie aber nie unmittelbar erkennen. Stets sind wir in unserer inneren Arena gefangen. Gegen diese weit verbreitete Auffassung argumentiert diese (...) Studie, daß Descartes' Ideentheorie im Rahmen einer Theorie der Intentionalität zu verstehen ist: Ideen sind nichts anderes als intentionale Akte, die im Normalfall auf äußere Objekte gerichtet sind und diese Objekte zum Inhalt haben. In der Cartesischen Ontologie gibt es keinen Platz für mysteriöse innere Objekte, die sich gleichsam zwischen den Geist und die äußeren Objekte schieben. Freilich stellen sich dann sogleich die Fragen, (i) wie geistige Akte überhaupt auf Objekte gerichtet sein können, (ii) wie der Inhalt dieser Akte zu bestimmen ist und (iii) wie wir mittels intentionaler Akte eine korrekte Erkenntnis der Außenwelt gewinnen können. -/- Diesen Fragen geht die Studie in ausführlichen Text- und Argumentationsanalysen nach. Sie verdeutlicht, daß im Zentrum der Cartesischen Lehre die These steht, daß wir ganz bestimmte Ideen - nämlich klare und distinkte - benötigen, um wahre Urteile über die äußeren Objekte bilden zu können. Dabei wird die Cartesische Theorie einerseits im historischen Kontext dargestellt, andererseits werden aber auch Bezüge zur gegenwärtigen analytischen Diskussion hergestellt. (shrink)

Sind die Gegenstände farbig? Zum Problem der Sinneseigenschaften bei Descartes.

All medieval philosophers agreed that emotions ought to be controlled by reason, but they gave different accounts of the control that is possible. Aquinas took emotions to be sensory states that are under immediate rational control because both sensory and rational states are produced by a single soul. By contrast, Ockham distinguished two souls and two types of emotions, namely sensory ones that inevitably arise, and rational ones that can be changed by the will. This chapter examines the mechanisms of (...) control in both cases, paying particular attention to the metaphysical framework the two authors chose. Moreover, it looks at the way they dealt with cases of internal emotional conflict. Whereas Aquinas ruled out permanent conflict in a well-functioning soul, Ockham conceded that some rational emotions could coexist with opposing sensory emotions, thus agreeing that true conflict is possible. (shrink)

How is it possible to investigate philosophical texts analytically, but simultaneously to contextualize them historically and thus to pursue an analytic Geistesgeschichte? The following contribution answers this question in four theses: (1) According to the Nominalism-Thesis, individual texts as opposed to general trends or ideas are to be attended to. (2) The Relationism-Thesis holds that these texts are always to be related to other texts within their historical context. (3) The Multi-Perspectivism-Thesis emphasizes the fact that texts in various contexts are (...) to be considered so that different kinds of relation become clear. (4) Finally, the Historiography-Thesis requires that in addition to the texts themselves interpretive schemata are also to be critically examined. All four theses are explicated with reference to medieval philosophy. (shrink)

Welche Überlegungen Leibniz‘ sind nach der Kritik der Postmoderne noch gültig? An unterschiedlichen Aspekten erarbeitet der vorliegende Band eine Neuinterpretation und betrachtet das Werk aus einem veränderten Blickwinkel: So rekonstruieren die Autoren Leibniz‘ Vorstellungen zu Toleranz und Wahrheit aus seinen kirchenpolitischen Stellungnahmen; und seine Strategie der Abgrenzung zwischen Tieren und Menschen wird auf ihre Brauchbarkeit für die aktuelle Debatte überprüft. Auch Leibniz‘ Theorie der Perzeptionen wird vor dem Hintergrund vergleichbarer Theorien der Gegenwart (u. a. Hirnphysiologie, Konstruktivismus, Psychoanalyse) ausgeleuchtet. Den üblichen (...) von der Substanz ausgehenden Interpretationen seiner Metaphysik wird hier eine Interpretation vom Wesen her entgegengesetzt. (shrink)

Spinozas These „Wer eine wahre Idee hat, weiß zugleich, dass er eine wahre Idee hat“ hat zahlreiche Interpreten dazu bewogen, ihm eine ernsthafte Auseinandersetzung mit dem Skeptizismus abzusprechen. Es scheint, als würde er die zentrale Frage, welche unabhängige Garantie wir für die Wahrheit einer Idee haben, einfach ignorieren. Gegen diese Auffassung wird argumentiert, dass sich Spinoza durchaus der skeptischen Herausforderung stellt, und zwar indem er eine theoretische Diagnose formuliert: Der Skeptiker nimmt irrtümlicherweise an, Ideen seien isolierte, von körperlichen Zuständen getrennte (...) Repräsentationen, für die je einzeln eine Garantie gesucht werden muss. Spinoza versucht diese Annahme zu korrigieren, indem er eine holistische, monistische und externalistische Theorie von Ideen entwirft: Eine Idee lässt sich nur erklären, wenn sie einerseits in ihrer Verkettung mit anderen Ideen und andererseits mit Blick auf die körperliche Grundlage erfasst wird. Dann zeigt sich, dass die Garantie für die Wahrheit einer Idee im körperlich verankerten Ideennetz und nicht in einer übergeordneten Instanz liegt. (shrink)

The contributions in this volume examine these questions on the basis of key texts, thus shedding new light on the problematic relationship between logic and theology.

In der 1970 gegründeten Reihe erscheinen Arbeiten, die philosophiehistorische Studien mit einem systematischen Ansatz oder systematische Studien mit philosophiehistorischen Rekonstruktionen verbinden. Neben deutschsprachigen werden auch englischsprachige Monographien veröffentlicht. Gründungsherausgeber sind: Erhard Scheibe, Günther Patzig und Wolfgang Wieland. Von 1990 bis 2007 wurde die Reihe von Jürgen Mittelstraß mitherausgegeben.

Das Problem des Selbstwissens wird nicht erst in der gegenwartigen Philosophie des Geistes kontrovers diskutiert. Bereits im Spatmittelalter gab es eine intensive Debatte daruber, ob und wie der menschliche Geist Wissen von sich selbst und seinen eigenen Akten und Zustanden haben kann. Der vorliegende Band macht erstmals zentrale Texte in einer zweisprachigen Ausgabe zuganglich. Einfuhrungen zu den jeweiligen Autoren und ihren Texten bieten Interpretationshilfen und ermoglichen sowohl einen historischen als auch einen systematischen Zugang zu der scholastischen Debatte. Die Bandbreite der (...) verschiedenen Positionen wird anhand von Texten so unterschiedlicher Autoren wie Thomas von Aquin, Petrus Johannis Olivi, Roger Marston, Thomas Sutton, Matthaus von Aquasparta, Heinrich von Gent, Dietrich von Freiberg, Wilhelm von Ockham, Walter Chatton und Johannes Buridan prasentiert. (shrink)

All Aristotelians subscribed to the thesis that the soul as the principle of life has many powers. But how are the powers related to the soul’s essence? It has often been argued that medieval philosophers gave two answers to this ques- tion: some took them to be necessary accidents that are distinct from the soul’s essence, whereas others simply identified them with the essence. This paper intends to show that there were alternatives to these two standard models. Peter of John (...) Olivi argued that the powers are not accidents but substantial forms that constitute the soul’s essence. He thereby defended a strong mereological thesis, for he assumed that the powers are literally parts that make together a whole. Henry of Ghent also rejected the idea that powers are accidents. Instead, he defended the claim that a power of the soul is a whole constituted by the soul’s essence and a relation determining the essence to an act and an object. In making this claim, Henry proposed a determination thesis. The paper dis- cusses both theses in detail, looks at the arguments Olivi and Henry adduced against the two standard models, and evaluates their theories in the historical context. (shrink)

It has often been said that the knowability of substances became a problem in the early modern period, when anti-Aristotelians doubted that we could know anything more than the sensory qualities that are present to us. This article argues that the late scholastic Aristotelian Francisco Suárez was already aware of this sceptical problem. On his view, substances are really (and not just modally) distinct from the perceivable qualities, and therefore cannot be known through sense perception. The article first examines the (...) metaphysical theory that motivated him to defend this thesis. It then looks at the epistemological consequences he drew from it. Though he rejected direct knowledge of substances, he nevertheless conceded that knowledge can be obtained through a “discursive process”. The article explores this process, spelling out all the cognitive steps it involves. In particular, it analyses Suárez's explanation of how we produce special cognitive devices (the “intelligible species”) that enable us to represent substances. Finally, it assesses Suárez's solution to the knowability problem by comparing it to Locke's solution. It argues that metaphysical rationalism led him to posit substances: we need to accept them as active causes and bearers of qualities, although we have no direct access to them. (shrink)

When we are asked what the term ‘Socrates’ signifies, we answer spontaneously, I suppose: “the man Socrates.” And when we are asked what the term ‘white’ signifies, we tend to answer: “the color white” or “whiteness.” Although our second answer may be less spontaneous than the first, either because we may have some difficulty in explaining what a color is, ontologically speaking, or because we may be reluctant to commit ourselves to such a controversial thing as whiteness, we may nevertheless (...) be willing to grant that ‘white’ signifies something, however this thing is to be explained in detail. But when we are asked what ‘Socrates is white’ signifies, we might hesitate in giving an answer. Some may say: “Well, this sentence signifies nothing other than Socrates and the color white.” Others may respond: “It signifies Socrates insofar as he is white” or “the fact that Socrates is white.” Still others may reply that there is no answer because only terms signify something; a sentence, on the other hand, does not signify but expresses something or brings something to the understanding. (shrink)

According to Spinoza, there is no categorical distinction between human and non-human animals: they all belong to the same nature and all consist of bodies with corresponding ideas. This thesis gives rise to two problems. How is it possible to distinguish different types of animals, in particular non-rational and rational ones, if all of them have the same metaphysical structure? And why does Spinoza nevertheless claim that human beings have a privileged status that gives them the right to use non-rational (...) animals? This paper examines these two problems, arguing that the solution to both of them lies in Spinoza’s all-embracing naturalism. (shrink)

Aquinas holds that human beings perceive material objects in a rational way, since their sensory faculty is always under the guidance of the rational faculty. This paper intends to shed light on this fundamental thesis. First, it examines the metaphysical background, focusing on Aquinas’s claim that there is just one soul with interconnected, hierarchically ordered faculties. Second, it looks at the interconnection in the case of perception, paying particular attention to the vis cogitativa. This special power, which can only be (...) found in human beings, belongs to the sensory faculty but is always guided by the rational faculty and produces perceptions that are conceptually structured: it enables human beings to see something as something. Third, the paper builds a bridge to recent theories of “transformative rationality.” Like the advocates of this theory, Aquinas claims that rationality is not simply added to sensory activity, but rather something that is present in every act of human perception. (shrink)

This chapter examines how Spinoza deals with the identity problem by looking at his account of material and mental things. To understand how material things can remain the same over time, it looks at the “Physical Digression” where Spinoza explains the constitution of bodies. By using the structural criterion, Spinoza can solve a number of problems concerning identity and change. Spinoza would say that there is no identity between the body before and after the accident because the proportion between its (...) moving and non‐moving parts is no longer the same. Memory plays no decisive role, and can therefore be disregarded in the account of diachronic identity. Spinoza goes far beyond the Aristotelian conception by spelling out the form in kinetic terms for material things, and in representational terms for mental things. (shrink)

Abstrakt zum Buch Welche Fragen haben die großen Denker beschäftigt? Wie haben sich die Fragestellungen weiterentwickelt? Und aus welchen Gründen sind diese klassischen Fragestellungen und Texte für uns heute noch interessant? Diesen Fragen geht der 2004 erstmals im Hardcover veröffentlichte Band nach. Die vollständig durchgesehene Neuausgabe in der Universal-Bibliothek wurde um Abschnitte zu Plotin (»Woher kommt das Böse?«), John Rawls (»Gerechtigkeit für eine pluralistische Gesellschaft«), Donald Davidson (»Bedeutung und Interpretation«) und Jacques Derrida (»Sinn, Schrift und Differenz«) erweitert. Nach oben .