The goal of the book is to provide an anthology covering the reception of Plato's Republic in the Islamic world, with a focus on Averroes's outstanding but underappreciated commentary on Plato's most famous dialogue. Despite the publication of Ralph Lerner's excellent English translation almost 50 years ago, very few scholarly studies have been written on it. We propose the following chapters, keeping in mind that some might be changed owing to collaboration with contributors.

What kind of causality does the Aristotelian Prime Mover exert on the heaven? Who “loves” the Prime Mover? Renaissance peripatetic philosopher, Francesco Vimercato, a “royal” teacher of “Greek and Latin philosophy” in Paris during the forties and the fifties of the 16th century tried to resolve these traditional puzzles that resulted from the exegesis of the Metaphysics XII, 6–7. His solution appears to be innovative, if compared to the ancient and the medieval ones. It seems partially to prefigure the last (...) two decades’ interpretations of Aristotelian “theology”. (shrink)

This chapter contains sections titled: Philosophy and theology God and natural philosophy Religion and political philosophy.

This paper examines Pomponazzi's arguments against Averroes in his De Immortalitate Animae, focusing on the question whether thought is possible without a body. The first part of the paper will sketch the history of the problem, namely the interpretation of Aristotle's remarks about the intellect in De Anima 3.4-5, touching on Alexander, Themistius, and Averroes. The second part will focus on Pomponazzi's response to Averroes, including his use of arguments by Aquinas. It will conclude by suggesting that Pomponazzi's discussion (...) stands as the first properly modern account of Aristotle's psychology. (shrink)

This piece of work intends to shed light on Alexander of Aphrodisias from the second-century Aristotle commentator through the history of Aristotelian psychology up to the sixteenth century's clandestine prompter of the new philosophy of nature. In the millennium after his death the head of the Peripatetic school in Athens served as the authority on Aristotle in the Neo-Platonic school, survived the Arabic centuries of philosophy as Averroes' exemplary exponent of the mortality of the soul and as such was (...) not considered worthy of translation by the Latin Scholastics. This attitude changed only in the Late Middle Ages, when the resistance against Averroes grew fierce and Alexander emerged as the only Aristotelian alternative to him. In 1495 his account of Aristotle's psychology was translated and published and the underlying principles of a natural philosophy, based on sense perception and exempt from metaphysics, became accessible. The prompt reception and widespread endorsement of Alexander's teaching testify to his impact throughout the sixteenth century. (shrink)

This piece of work intends to shed light on Alexander of Aphrodisias from the second-century Aristotle commentator through the history of Aristotelian psychology up to the sixteenth century's clandestine prompter of the new philosophy of nature. In the millennium after his death the head of the Peripatetic school in Athens served as the authority on Aristotle in the Neo-Platonic school, survived the Arabic centuries of philosophy as Averroes' exemplary exponent of the mortality of the soul and as such was (...) not considered worthy of translation by the Latin Scholastics. This attitude changed only in the Late Middle Ages, when the resistance against Averroes grew fierce and Alexander emerged as the only Aristotelian alternative to him. In 1495 his account of Aristotle's psychology was translated and published and the underlying principles of a natural philosophy, based on sense perception and exempt from metaphysics, became accessible. The prompt reception and widespread endorsement of Alexander's teaching testify to his impact throughout the sixteenth century. (shrink)

In Averroes’s epistemology, knowledge is universal, but it is always singular in terms of the known. Averroes believes that there is no need for an activity, even in the sense that used by those who have the idea of "kumūn" rational forms being formed by other rational forms of the same kind, or for a power such as in the example of polishing a mirror to reflect an image. Similarly, he argues that there are no discrete abstract forms of existing (...) things because otherwise, everyone would have to know everything. Although there are different degrees and levels, the existence of absolute metaphysical forms is subject to change and increases with the multiplication of their subjects. There are three means of knowledge: sensation, imagination, and intellect. Unlike the sensation and perception modes in animals, humans perceive the outer appearance of objects as well as their unique meanings and distinctions. Like animals, the function of sensation in humans is to mediate the self. While perception is abstract and spiritual in one sense, it is material and concrete in another. Averroes does not find it correct to link the knowledge of the contingents of the world to the eternal knowledge of God. Beacuse this implies that there is a difference in God's knowledge between the state of the world's existence and non-existence. In addition, human knowledge about contingents is deficient and changeable, whereas God's knowledge is the cause of the existence of contingents and is unchanging. Ultimately, it does not seem possible for humans to comprehend the nature of God's knowledge. It is agreed with Alexander of Aphrodisias that there should be a distinction between the active and imaginative intellects, but he differs from him in the point that the imaginative intellect disappears. According to Averroes, the active intellect in action is eternal, unlike Themistius’ view. According to Averroes, the intellect is neither a pure potentiality nor a distinct substance. That is to say, if the imaginative intellect were an actual thing, it could not perceive other things. If the intellect were absolute, everyone would know the same things. Similarly, if the intellect were absolute plurality, there would be no unity and connection between intellects. If the intellect were merely an accepting capacity, it could not perceive absence. According to Averroes, the active intellect is not a distinct intellect that gives form or governs the spheres, but rather the form and purpose of the imaginative intellect. There are two powers of this intellect: to abstract the concepts in their potential state from their matter and to make them actual and accepting them. In conclusion, it can be said that Averroes made a substance-centered philosophy regarding the possibility and reality of knowledge, and while he did not deviate from the Aristotelian line, he had to make new openings. Paradoxically, he tries to explain both the actual/abstract and potential/material aspects of the intellect that are postulated by introducing an original soul theory with the imaginative intellect. Therefore, he places importance on both a priori knowledge and sensation and imagination. (shrink)

The present paper aims at presenting Averroes’ doctrine of act and potency in the framework of his general conception of metaphysics as a science. By tracing the origins of his doctrine back to Alexander of Aphrodisias, it shows that Averroes conceives act and potency as concomitant attributes of being qua being and as terms πρὸς ἕν and ἀφ’ ἑνός. According to this reading, the study of these two notions, considered as such, constitutes an essential step in Averroes’ metaphysical project, (...) whose ultimate goal is to account for the essence of the first of all forms: God. (shrink)

This is not a book for the ordinary historian of philosophy. It consists almost exclusively of detailed analyses of the manuscript readings at a few scores of places in Metaphysics A–Δ and Λ, confronting the transmitted readings each time with Alexander of Aphrodisias’s comments on the relevant passage. The reason why only those books are studied is simple: Alexander’s commentary on books E–N was lost before the end of the Byzantine era, but Averroes preserved information about the contents (...) of an Arabic translation of the commentary on book Λ. If you are brazen-bowelled enough to stomach so much philological detail, this is a rich book, which teaches the... (shrink)

The Arabic tradition knew Alexander’s treatises On Fate and On Providence. Alexander criticizes the Stoic determinism with some peripatetic arguments. In those treatises we can find, at least, two positions: the peripatetic and “libertarian” position represented by Alexander, and Stoic determinism. A very similar discussion can be found in Islamic tradition. As S. Van den Bergh has insisted, Islamic theological schools had some Stoic influences. One of the issues in which we can find some common views is, (...) precisely, the problem of determinism and free will. The aim of this paper is to show that the kasb (acquisition)doctrine of the Islamic theologians Asharites is very similar to Stoic determinism in its compatibilist version: both, Stoics and Asharites, conceive a causal network established by the fate or the providence. From this point of view we have to discuss which is the true agent of the natural and human acts that happen in this world. If the providence guides every act, the natural causality and the free will should be denied. On the one hand, I will present some arguments from the most representative Asharite theologian, al-Ghazali, to support a kind of compatibilist determinism; from the other hand, I will evaluate Averroes peripatetic arguments against determinism. Is Averroes more consistent than Alexander or do we have to conclude that al-Ghazali and the Asharites have stronger arguments in order to support the kasb doctrine? (shrink)

This article examines Averroes’ interpretation, found in his Long Commentary on the De Anima, of a famous passage in Aristotle’s De An. III 5 which presents the intellect “producing all things, as a kind of positive state, like light”. Averroes, clearly heir to Alexander of Aphrodisias for whom hexis refers not to the intellect “agent” itself but to its product, defends nevertheless, via the comparison with light, the conception of the agent intellect as an hexis, which leads us to (...) the inevitable consequence that the agent intellect is the prime object of the material intellect, acting as a condition for all subsequent thoughts. (shrink)

The Arabic tradition knew Alexander’s treatises On Fate and On Providence. Alexander criticizes the Stoic determinism with some peripatetic arguments. In those treatises we can find, at least, two positions: the peripatetic and “libertarian” position represented by Alexander, and Stoic determinism. A very similar discussion can be found in Islamic tradition. As S. Van den Bergh has insisted, Islamic theological schools had some Stoic influences. One of the issues in which we can find some common views is, (...) precisely, the problem of determinism and free will. The aim of this paper is to show that the kasb (acquisition)doctrine of the Islamic theologians Asharites is very similar to Stoic determinism in its compatibilist version: both, Stoics and Asharites, conceive a causal network established by the fate or the providence. From this point of view we have to discuss which is the true agent of the natural and human acts that happen in this world. If the providence guides every act, the natural causality and the free will should be denied. On the one hand, I will present some arguments from the most representative Asharite theologian, al-Ghazali, to support a kind of compatibilist determinism; from the other hand, I will evaluate Averroes peripatetic arguments against determinism. Is Averroes more consistent than Alexander or do we have to conclude that al-Ghazali and the Asharites have stronger arguments in order to support the kasb doctrine? (shrink)

Lo studio si concentra sul modo in cui i commenti alla Metafisica di Paolo di Venezia e Alessandro di Alessandria evidenziano il grado di modificazione della comprensione della dottrina aristotelica sull'essenza, dovuta alla ricezione della dottrina di Tommaso d'Aquino e di Averroè al riguardo. Dopo un'introduzione di inquadramento storico dottrinale dei due commenti, la seconda parte è centrata sulle dottrine dei due maestri relative all'essenza, e l'A. articola la sua ricognizione attorno ai temi del rapporto fra essenza e sostanza, essenza (...) e predicazione, e sulla rispettiva ricezione della dottrina tomista sull'essenza, fondata a sua volta sulla dottrina avicenniana . La terza parte verte su una puntuale ricostruzione della dottrina dell'essenza in Paolo, mentre la quarta evidenzia come Alessandro sia la fonte primaria di Paolo. L'A., infine, esamina il commento di Alessandro in relazione al tema dell'essenza. Nella conclusione ribadisce come Alessandro e Paolo tentino di riconciliare la dottrina averroista con Aristotele, adottando l'interpretazione di Tommaso. Tra i testi dell'Aquinate utilizzati si ricordano il De ente et essentia, il commento alla Metaphysica e quello alle Sentenze, la Summa theologiae. (shrink)

The works of Gersonides encompass science, philosophy, and biblical exegesis. The majority of the philosophical writings are constituted by supercommentaries on Averroes’s commentaries on Aristotle’s works, whereas his magnum opus, The Wars of the Lord, encompasses all three genres. Since these works engage his preeminent predecessors, Maimonides and Averroes, and since Gersonides explains the motivation to composing the Wars as a concern for human flourishing, the absence of a supercommentary on the Nicomachean Ethics is striking.The Virtue Ethics of Levi Gersonides (...) is a bold attempt to provide an account of Gersonides’s ethics as a significant departure from his preeminent... (shrink)

L'esistenza del commento di Alessandro di Afrodisia al De generatione aristotelico, perduto nella versione greca e nella traduzione araba, è attestata da numerose fonti arabe, tra le quali Averroè, nel suo commento alla stessa opera. L'A. rintraccia la presenza, la tipologia e la distribuzione delle citazioni tratte dal commento di Alessandro nel Kitab al-Tasrif, un'opera del corpus alchemico attribuita a Gabir ibn Hayyan. Secondo l'A., la sezione interessata dalle citazioni assembla tre diversi tipi di testi: 1) lemmi del De generatione (...) in traduzione araba; 2) frammenti lacunosi della traduzione araba del commento di Alessandro; 3) interventi di collegamento. Una più ampia discussione si trova in un saggio visibile sulla pagina "publicationslist" dell'autore: "Alessandro di Afrodisia sulle 'contrarietà tangibili' (De gen. et corr. II.2): fonti greche e arabe a confronto" in: Aristotele e Alessandro di Afrodisia nella tradizione araba, a c. di C. D'Ancona e G. Serra, “Il Poligrafo”, Padova 2002, pp. 151-189. Notasi che il testo ricostruito di Alessandro in GC 2.2-5 è stato pubblicato da E. Gannagé nella serie ACA, che però non menziona il contributo di SF, dalla cui iniziativa, dalle cui analisi e dalla cui ricostruzione integrale, svolta sul manoscritto arabo Paris. 5099, la ricerca prese l'avvio. (shrink)

In this paper, I present a translation and analysis of Metaphysics α 1, 993 b 23-31 to subsequently show how Alexander of Aphrodisias’s interpretation of said passage led medieval philosophers to attribute a doctrine of creation to Aristotle. For Alexander, those things that are most true and those beings that are in the highest degree, about which Aristotle speaks in Met. α 1, a passage that originally addressed the relationship between the premises and conclusions of demonstrations, are the (...) unmoved movers, which have a relationship of imitation or participation with the things that depend on them. In Averroes, who favors the Neoplatonic notion of perfection, the causality of the unmoved mover becomes an efficient causality in its fullest sense: an explanation not only of the movement of the heavens, but of their being and that of all things. Thus, he implicitly presents Aristotle as a monotheistic and creationist philosopher. Thomas Aquinas, using the notions of “being by essence” and “being by participation” and deriving a notion of “always being” from that of “always being true”, also transforms the unmoved mover into a true creator and explicitly points out the reasons for his interpretation in the text of Aristotle. (shrink)

Do the sciences aim to uncover the structure of nature, or are they ultimately a practical means of controlling our environment? In Instrumental Biology, or the Disunity of Science, Alexander Rosenberg argues that while physics and chemistry can develop laws that reveal the structure of natural phenomena, biology is fated to be a practical, instrumental discipline. Because of the complexity produced by natural selection, and because of the limits on human cognition, scientists are prevented from uncovering the basic structure (...) of biological phenomena. Consequently, biology and all of the disciplines that rest upon it--psychology and the other human sciences--must aim at most to provide practical tools for coping with the natural world rather than a complete theoretical understanding of it. (shrink)

Toy models are highly idealized and extremely simple models. Although they are omnipresent across scientific disciplines, toy models are a surprisingly under-appreciated subject in the philosophy of science. The main philosophical puzzle regarding toy models concerns what the epistemic goal of toy modelling is. One promising proposal for answering this question is the claim that the epistemic goal of toy models is to provide individual scientists with understanding. The aim of this article is to precisely articulate and to defend this (...) claim. In particular, we will distinguish between autonomous and embedded toy models, and then argue that important examples of autonomous toy models are sometimes best interpreted to provide how-possibly understanding, while embedded toy models yield how-actually understanding, if certain conditions are satisfied. _1_ Introduction _2_ Embedded and Autonomous Toy Models _2.1_ Embedded toy models _2.2_ Autonomous toy models _2.3_ Qualification _3_ A Theory of Understanding for Toy Models _3.1_ Preliminaries and requirements _3.2_ The refined simple view _4_ Two Kinds of Understanding with Toy Models _4.1_ Embedded toy models and how-actually understanding _4.2_ Against a how-actually interpretation of all autonomous toy models _4.3_ The how-possibly interpretation of some autonomous toy models _5_ Conclusion. (shrink)

For a novice this book is a mathematically-oriented introduction to modal logic, the discipline within mathematical logic studying mathematical models of reasoning which involve various kinds of modal operators. It starts with very fundamental concepts and gradually proceeds to the front line of current research, introducing in full details the modern semantic and algebraic apparatus and covering practically all classical results in the field. It contains both numerous exercises and open problems, and presupposes only minimal knowledge in mathematics. A specialist (...) can use the book as a source of references. Results and methods of many directions in propositional modal logic, from completeness and duality to algorithmic problems, are collected and systematically presented in one volume. (shrink)

This book explores noteworthy approaches to modal syllogistic adopted by medieval logicians including Abélard, Albert the Great, Avicenna, Averröes, Jean Buridan, Richard Campsall, Robert Kilwardby, and William of Ockham. The book situates these approaches in relation to Aristotle's discussion in the Prior and Posterior Analytics, and other parts of the Organon, but also in relation to the thought of Alexander of Aphrodisias and Boethius on the one hand, and to modern interpretations of the modal syllogistic on the other. Problems (...) explored include: Aristotle's doctrine of modal conversion, the pure and mixed necessity-moods, modal ecthesis, the pure and mixed contingency-moods, and Aristotle's use of counter-examples. Medieval logicians brought various concepts to bear on these problems, including the distinction between per se and per accidens terms, the notion of essential predication, the distinction between ut nunc and simpliciter propositions, the distinction between de dicto and de re modals, and the notion of ampliation. All these are examined in this book. (shrink)

Analyzes the poem "On Nature" by Parmenides, arguing that is actually a philosophical argument disguised as Homer-like mythological journey. Original.

We explore the prospects of a monist account of explanation for both non-causal explanations in science and pure mathematics. Our starting point is the counterfactual theory of explanation for explanations in science, as advocated in the recent literature on explanation. We argue that, despite the obvious differences between mathematical and scientific explanation, the CTE can be extended to cover both non-causal explanations in science and mathematical explanations. In particular, a successful application of the CTE to mathematical explanations requires us to (...) rely on counterpossibles. We conclude that the CTE is a promising candidate for a monist account of explanation in both science and mathematics. (shrink)

Philosophical discussions often involve appeals to verdicts about particular cases, sometimes actual, more often hypothetical, and usually with little or no substantive argument in their defense. Philosophers — on both sides of debates over the standing of this practice — have often called the basis for such appeals ‘intuitions’. But, what might such ‘intuitions’ be, such that they could legitimately serve these purposes? Answers vary, ranging from ‘thin’ conceptions that identify intuitions as merely instances of some fairly generic and epistemologically (...) uncontroversial category of mental states or episodes to ‘thick’ conceptions that add to this thin base certain semantic, phenomenological, etiological, or methodological conditions. As this chapter discusses, thick conceptions turn out to have their own methodological problems; some may even leave philosophers in the methodologically untenable position of being unable to determine when anyone is doing philosophy correctly. (shrink)

A traditional interpretation holds that Kant's political theory simply constitutes an account of the constraints which reason places on the state's authority to regulate external action. Alexander Kaufman argues that this traditional interpretation succeeds neither as a faithful reading of Kant's texts nor as a plausible, philosophically sound reconstruction of a `Kantian' political theory. Rather, he argues that Kant's political theory articulates a positive conception of the state's role.

We define a notion of the intelligence level of an idealized mechanical knowing agent. This is motivated by efforts within artificial intelligence research to define real-number intelligence levels of compli- cated intelligent systems. Our agents are more idealized, which allows us to define a much simpler measure of intelligence level for them. In short, we define the intelligence level of a mechanical knowing agent to be the supremum of the computable ordinals that have codes the agent knows to be codes (...) of computable ordinals. We prove that if one agent knows certain things about another agent, then the former necessarily has a higher intelligence level than the latter. This allows our intelligence no- tion to serve as a stepping stone to obtain results which, by themselves, are not stated in terms of our intelligence notion (results of potential in- terest even to readers totally skeptical that our notion correctly captures intelligence). As an application, we argue that these results comprise evidence against the possibility of intelligence explosion (that is, the no- tion that sufficiently intelligent machines will eventually be capable of designing even more intelligent machines, which can then design even more intelligent machines, and so on). (shrink)

This chapter contains sections titled: Introduction The PSR Nonlocal CPs Toward a First Cause The Gap Problem Conclusions and Further Research References.

It is commonly held that retraction data, if they exist, show that assessment relativism is preferable to non-indexical contextualism. I argue that this is not the case. Whether retraction data have the suggested probative force depends on substantive questions about the proper treatment of tense and location. One’s preferred account in these domains should determine whether one accepts assessment relativism or non-indexical contextualism.

The readiness potential (RP) is one of the most controversial topics in neuroscience and philosophy due to its perceived relevance to the role of conscious willing in action. Libet and colleagues reported that RP onset precedes both volitional movement and conscious awareness of willing that movement, suggesting that the experience of conscious will may not cause volitional movement (Libet, Gleason, Wright, & Pearl, 1983). Rather, they suggested that the RP indexes unconscious processes that may actually cause both volitional movement and (...) the accompanying conscious feeling of will (Libet et al., 1983; pg. 640). Here, we demonstrate that volitional movement can occur without an accompanying feeling of will. We additionally show that the neural processes indexed by RPs are insufficient to cause the experience of conscious willing. Specifically, RPs still occur when subjects make self-timed, endogenously-initiated movements due to a post-hypnotic suggestion, without a conscious feeling of having willed those movements. (shrink)

Nietzsche often gives the impression that all human beliefs are false. Some scholars, like Maudemarie Clark, believe that such a “falsification thesis” is unacceptable and try to limit Nietzsche's commitment to it, claiming that he abandons it in his very last works. Others, like Lanier Anderson and Nadeem Hussain, take it in ways that make it true and locate it in all. I argue that the view that is common to both approaches—that Nietzsche held that thesis in the first place—is (...) unjustified. To that end, I interpret the texts where these scholars claim to find the thesis in a way that shows that they do not commit Nietzsche to it, and I offer some reasons for thinking that this is a more fruitful way of interpreting his views on the importance of truth—and falsehood—and their function in the economy of human life. (shrink)

We examine some assumptions about the nature of 'levels of reality' in the light of examples drawn from physics. Three central assumptions of the standard view of such levels (for instance, Oppenheim and Putnam 1958) are (i) that levels are populated by entities of varying complexity, (ii) that there is a unique hierarchy of levels, ranging from the very small to the very large, and (iii) that the inhabitants of adjacent levels are related by the parthood relation. Using examples from (...) physics, we argue that it is more natural to view the inhabitants of levels as the behaviors of entities, rather than entities themselves. This suggests an account of reduction between levels, according to which one behavior reduces to another if the two are related by an appropriate limit relation. By considering cases where such inter-level reduction fails, we show that the hierarchy of behaviors differs in several respects from the standard hierarchy of entities. In particular, while on the standard view, lower-level entities are 'micro' parts of higher-level entities, on our view, a system's macro-level behavior can be seen as a ('non-spatial') part of its micro-level behavior. We argue that this second hierarchy is not really in conflict with the standard view and that it better suits examples of explanation in science. (shrink)

Platonism has played a central role in Christianity and is essential to a deep understanding of the Christian theological tradition. At times, Platonism has constituted an essential philosophical and theological resource, furnishing Christianity with an intellectual framework that has played a key role in its early development, and in subsequent periods of renewal. Alternatively, it has been considered a compromising influence, conflicting with the faith's revelatory foundations and distorting its inherent message. In both cases the fundamental importance of Platonism, as (...) a force which Christianity defined itself by and against, is clear. Written by an international team of scholars, this landmark volume examines the history of Christian Platonism from antiquity to the present day, covers key concepts, and engages issues such as the environment, natural science and materialism. (shrink)

Corrupt behavior presents major challenges for organizations in a wide range of settings. This article embraces a complexity theoretical perspective to elucidate the causal patterns of factors underlying consumers’ unethical judgments. This study examines how causal conditions of four distinct domains combine into configurational causes of unethical judgments of two frequent forms of corrupt consumer behavior: shoplifting and fare dodging. The findings of fuzzy-set Qualitative Comparative Analyses indicate alternative, consistently sufficient “recipes” for the outcomes of interest. This study extends prior (...) work on the topic by offering new insights into the interplay and the interconnected structures of multiple causal factors and by describing configurational causes of consumers’ ethical evaluations of corrupt behaviors. This knowledge may support practitioners and policy makers to develop education and control approaches to thwart corrupt consumer behaviors. (shrink)

In the study of modal and nonclassical logics, translations have frequently been employed as a way of measuring the inferential capabilities of a logic. It is sometimes claimed that two logics are “notational variants” if they are translationally equivalent. However, we will show that this cannot be quite right, since first-order logic and propositional logic are translationally equivalent. Others have claimed that for two logics to be notational variants, they must at least be compositionally intertranslatable. The definition of compositionality these (...) accounts use, however, is too strong, as the standard translation from modal logic to first-order logic is not compositional in this sense. In light of this, we will explore a weaker version of this notion that we will call schematicity and show that there is no schematic translation either from first-order logic to propositional logic or from intuitionistic logic to classical logic. (shrink)