I examine Alexander of Aphrodisias’ theory of action, addressing the question how his view that human actions are determined by reason accounts for the capacity of doing otherwise. Calling into question the standard view that Alexander frees agents from internal determination, I argue that (1) the capacity of doing otherwise is a consequence of determination by reason, since it enables agents to do something different from what they would have done had they followed external circumstances; and (2) this capacity is (...) compatible with causal determination by reason because as a case of potentiality for opposites, it grants agents the qualified possibility of doing otherwise insofar as their nature as human beings is concerned – a possibility which remains also when their actions are causally determined by reason and by their internal disposition. I show further that these elements of Alexander’s theory of action are ultimately based on his conception of the soul, specifically on his commitment to Aristotle’s view that the human soul is not purely rational, as the Stoics hold, but has nonrational and rational parts. (shrink)

In his own De anima, Alexander of Aphrodisias famously identifies the “active” (poietikon) intellect with the prime mover in Metaphysics Λ. However, Alexander’s claim raises an issue: why would this divine intellect come in the middle of a study of soul in general and of human intellection in particular? As Paul Moraux asks in his pioneering work on Alexander’s conception of the intellect, is the active intellect a “useless addition”? In this paper, I try to answer this question by challenging (...) a solution according to which the active intellect would intervene directly with the material intellect to trigger its ordinary working. I argue that the active intellect acts as a final cause, both for human intellect and for its ordinary objects of thought. The active intellect is twice “cause of the intellection”, i.e. cause of the actualization of human thought: once (i) when it offers thought occasions for thinking through objects, and again (ii) when it actualizes mediately the human intellect itself in its development. This reading agrees with Alexander’s usual position about the prime mover’s causality. It accounts for the multiplicity of expressions with which Alexander describes the causality of the active intellect in his De anima. It also explains why the development of human intellect has been described without direct reference to active intellect, since substances do not aim directly at the First cause, but their aiming at it is mediated by their desire for their own good. (shrink)

The existence of common points between Alexander of Aphrodise and Bardaisan the Syrian has been pointed out on various occasions. However, this question has not been explored in depth. The article proposes to analyse the cosmological ideas of Alexander and Bardaisan. Because both authors are known for their anti-determinist and anti-astrological polemics, it is preferable to place this comparison in the context of the astrological interpretation of Aristotle’s natural philosophy. The article discusses the Aristotelianism of Bardaisan, who may be the (...) first representative of the reception of this doctrine in Syriac. (shrink)

Comme l’attestent les textes relatifs à la cosmologie de Bardesane, le monde est venu à l’existence à partir des esṭuksē / ītyē, qui correspondraient aux éléments primordiaux de la tradition philosophique grecque. Bien que la cosmologie de Bardesane soit déjà étudiée, les témoignages au sujet des esṭuksē / ītyē contiennent des contradictions difficiles à expliquer. Le présent article propose une nouvelle interprétation de la doctrine de Bardesane, fondée sur la comparaison avec la cosmologie d’Aristote. L’approche aristotélicienne du mouvement des éléments, (...) de leurs qualités et leurs actions réciproques, donne une meilleure compréhension des points obscurs de la doctrine bardesanite et permet de retrouver la cohérence de celle-ci. En outre, le débat engagé par Aristote avec les théories atomistes aide à comprendre la place des perdē – atomes – dans le système de Bardesane. (shrink)

In Metaphysics B 3 Aristotle sets out a famous argument for the thesis that being is not a genus. In his commentary on Metaphysics B, Syrianus criticizes this argument and explains in what sense being is to be regarded as a genus. I reconstruct both Syrianus’ criticisms and his own view. I bring out ways in which they can help us rethink key assumptions of Aristotle’s ontology and shed light both on Syrianus’ critical attitude towards Aristotle and on some of (...) Syrianus’ main views in metaphysics. (shrink)

In Quaestiones 1.3 and 2.14, Alexander presents a distinctly realist or essentialist view of the objects of definition, distinguished, on the one hand, from two types of realism rejected by Aristotle, and, on the other, from two types of conceptualism that probably belong within the Peripatetic tradition. The difference between Alexander’s view and essentialist abstractivism lies in his understanding of definienda not as the common concepts of things existing in the particulars, but as the common things conceived of as existing (...) in the particulars. This paper offers a close reading of Quaest. 1.3, whose aim is to flesh out Alexander’s position vis-à-vis the objects of definition against the backdrop of the four rejected alternatives. The distinction between Alexander’s essentialism and the essentialist abstractivist notion of definienda is further explained in light of Quaest. 2.14. The amended Greek text of Quaest. 1.3 is appended with an English translation. (shrink)

Simplicius reports that Xenocrates and Andronicus reproached Aristotle for positing an excessive number of categories, which can conveniently be reduced to two: τὰ καθ᾽αὑτά and τὰ πρός τι. Simplicius, followed by several modern commentators, interprets this move as being equivalent to a division into substance and accidents. I aim to show that, as far as Xenocrates is concerned, this interpretation is untenable and that the substance-accidents contrast cannot be equivalent to Xenocrates’ per se-relative one. Rather, Xenocrates aimed to stress the (...) primacy of Plato’s binary distinction of beings, as presented at Sophist 255c13–4, over Aristotle’s list of the categories. (shrink)

One of the main difficulties that Neoplatonic commentators of Aristotle face is the different treatment that the Categories and the Metaphysics offer to the question of the substance. After describing briefly the status quaestionis ousiae in Aristotle, and after tracing the main Neoplatonic interpretations of this doctrine, this article attempts to demonstrate that the Neoplatonists of Athens and Alexandria, Syrianus and Ammonius, inaugurate a new interpretation of the Aristotelian doctrine. With regard to the category of substance in general and to (...) the question of substantiality of “immanent form” in particular, this new interpretation goes beyond the positions of Plotinus and Porphyry and returns the ontological value to the Aristotelian substances. Unlike Plotinus, who recognized as ousia only that one intelligible, that is five genres of the Platonic Sophist, and unlike Porphyry, who defused the anti–Platonic fuse of the Categories, giving to this treaty a mainly semantic skopos, these philosophers, through their original study of the theory of the three states of katholou, already shed in the Porphyrian Eisagôgê, fit the immanent forms of Aristotle, recognized as substances and as a reflection of the transcendental universal, into the late antique Neoplatonic metaphysical triadic structure. (shrink)

In his commentary on Physics I 9, Simplicius claims that individual forms individuate matter. Given that in the same text he calls the immanent form ‘universal,’ it seems reasonable to conclude that the individual forms are individual instances of one universal species–form. However, Simplicius also mentions accidental properties that are peculiar to form rather than to matter. On the basis of Simplicius’ commentaries on the Categories and on the Physics, I argue that the individuating accidents are not part of the (...) individual forms, but that each individual’s form coordinates the individual’s accidental features. By belonging to a certain species, the individual form sets limits as to which accidents a matter–form compound can assume. This approach enables Simplicius to combine hylomorphism with a theory of individuation through properties. Furthermore, in his commentary on De Caelo I 9 Simplicius explains the uniqueness of each individual’s conglomeration of properties in light of his Neoplatonic cosmology: each individual corresponds to an individual cosmic disposition that determines its characteristic features. (shrink)

This article is devoted to the philosophical fragment found in 1977 in the Bactrian city of Aï Khanum. Both its content and origin are still a matter of dispute among scholars. I provide first a new edition of the three remaining columns of the fragment, based on a new reading of its photographic reproductions. The second part of this paper deals with the difficult problem of its origin. I give new evidence in favour of the hypothesis according to which the (...) transmitted text is a piece of the second book of Aristotle’s lost dialogue Περὶ φιλοσοφίας. First, the comparison between this fragment and the opening lines of Theophrastus’ so-calledMetaphysicssuggests that both of them were written shortly after Plato’s death in the same historical and philosophical context, viz inside the Assos circle. Then, I examine the hypothesis of Louis Robert and Paul Bernard according to which an epigram written at the end of a list of Delphic maxims also found in Aï Khanum must be attributed to Clearchus of Soli, the pupil of Aristotle during the Assos period. The close connection between Clearchus’ main philosophical interests and the first book of Aristotle’s lost dialogue explains why he chose to bring it with him during his journey through the East, and left it in Aï Khanum. Finally, the reconstruction of the general structure of the Περὶ φιλοσοφίας leads to the conclusion that the fragment must come from its second book. (shrink)

Does Anaxagoras admit that the world is destructible? Aëtius’ doxographical handbook says as much, and so does a doxographical scholion derived from Alexander of Aphrodisias’ lost commentary on Aristotle’sPhysics(Frag. 539 Rashed) according to the transmitted text. However, because of other difficulties occurring in the same scholion, Rashed was led to correct not only this text, thus making it contradict Aëtius’ testimony, but also the entry dedicated to Plato. My article suggests that while Rashed’s corrections are superfluous, the problems that triggered (...) them are of great interest for the history of the doxographical tradition, for the way in which this tradition was used by Alexander of Aphrodisias and Simplicius in their commentaries on Aristotle’sPhysicsand, last but not least, for the understanding of the difficulties that ancient interpreters had to confront when they had to make sense of the lines now known as Anaxagoras B12 DK – difficulties that modern interpreters have still to confront. (shrink)

Avicenna's analysis of the definition of substance and accident repeatedly emphasizes two points: one and the same essence cannot be substance in one instance and accident in another; whetherxis extrinsic or intrinsic for an underlying subject,ydoes not tell us anything as to whetherxis substance or not. Both points are development in an argument against certain unnamed people who claimed the opposite. In this article I will show that Avicenna's opponents are to be identified with the mainstream Baghdad Peripatetic School which (...) based itself on the Late Antique rule that “parts of substances are substances”. As for Avicenna's own position, it was developed on the basis of the heterodox position of Yaḥyā b. ʿAdī, who anticipated Avicenna's first point. This is a further piece of evidence for something that has only recently begun to be appreciated: the influence of Ibn ʿAdī on Avicenna.RésuméL’analyse d’Avicenne portant sur les définitions de la substance et de l’accident met en exergue les deux propositions suivantes: 1) la même essence ne peut être à la fois une substance dans un cas et un accident dans un autre; 2) le fait quexsoit extrinsèque ou intrinsèque à unysous-jacent ne nous permet pas de conclure quexest une substance. Ces deux propositions sont articulées dans un débat avec d’autres personnes ayant un point de vue opposé dont on ne connaît pas l’identité. Dans cet article, nous verrons que ces adversaires font partie de l’école péripatétique de Bagdad, qui elle-même s’appuie sur une proposition datant de l’Antiquité tardive et selon laquelle les parties de substances sont elles-mêmes des substances. La position d’Avicenne fut développée à partir de celle de Yaḥyā b. ʿAdī. Cet article apporte ainsi un argument nouveau qui met en évidence l’influence, remarquée seulement depuis peu, d’Ibn ʿAdī sur Avicenne. (shrink)

This study investigates the problem of the natural universal in the works of Mullā Ṣadrā. The problem of universals made its way into Arabic/Islamic philosophy via its Greek sources, and was transformed into the problem of natural universals by Avicenna. Weighing in on this problem, Ṣadrā reinterprets the nature of natural universals against the backdrop of his doctrine of “the primacy of being.” As he argues, a natural universal or quiddity qua quiddity is an “accidental being” that requireswujūdfor its existentiation. (...) Thus, Ṣadrā re-envisions the status of natural universals by stripping them of their disputed status as independently existing entities.RésuméDans cette étude je me propose de réfléchir sur le problème de l'universel naturel dans l’œuvre de Mullā Ṣadrā. Le problème des universaux s'est introduit dans la philosophie arabe et musulmaneviales sources grecques et s'est trouvé transformé en celui des “universaux naturels” aux mains d'Avicenne. En contribuant à son tour à l’évolution de ce problème, Ṣadrā réinterpréta le statut des universaux naturels à partir de sa propre doctrine de la “primauté de l’être”. Selon lui, un universel naturel ou “quiddité en tant que quiddité” est un “être par accident” qui requiertwujūdpour son existentiation. Ainsi, Ṣadrā re-envisage le statut des universaux naturels en les privant de leur statut contesté en tant qu'entités “indépendantes existantes”. (shrink)

The “lost” Yaḥyā ibn ʿAdī treatises recently discovered in the Tehran codex Marwī 19 include a record of a philosophical debate instigated by the Ḥamdānid prince Sayf-al-Dawla. More precisely, Marwī 19 contains Yaḥyā’s adjudication of a dispute between an unnamed Opponent and Yaḥyā’s younger relative Ibrāhīm ibn ʿAdī (who also served as al-Fārābī’s assistant), along with Ibrāhīm's response to Yaḥyā’s adjudication, and Yaḥyā’s final word. At issue was a problem of Aristotelian exegesis: should “body” be understood as falling under the (...) category of substance or under the category of quantity? The unnamed Opponent argues that body is a species of substance; Ibrāhīm argues that technically speaking, body is a species of quantity, and hence an accident; and Yaḥyā judges that body is a species of substance, though for very different reasons than the Opponent gives. For the first time, the Arabic text of this exchange is edited and translated into English. Also provided is an Introduction that sets the debate in historical context, and discusses in particular the possible influence of John Philoponus. The debate is interesting and important not only because of the philosophical ramifications of the issues under discussion, but because it constitutes evidence of dialectical practice among Arabic-speaking philosophers from the middle of the 10th century. (shrink)

Este artículo se ocupa de la concepción del alma elaborada por Alejandro de Afrodisia, con especial atención a un aspecto específico que la distingue de la concepción aristotélica: la introducción de una facultad o capacidad impulsiva. En primer lugar, se considera la reformulación de la concepción jaristotélica del alma como forma del cuerpo que Alejandro lleva a cabo, en conexión con su original reconstrucción del hilemorfismo. Aquí se pone especial énfasis en el modo en el cual Alejandro construye lo que (...) puede llamarse un “modelo escalonado” de composición hilemórfica. En segundo lugar, se considera el tratamiento de la facultad impulsiva, atendiendo especialmente al rendimiento teórico que extrae Alejandro de la adopción de la noción de impulso. Por último, se considera brevemente el modelo reformulado de psicología de la acción que elabora Alejandro, para dar cuenta de la secuencia del proceso de producción del movimiento voluntario y la acción. Se trata de un modelo explicativo que deja de lado el recurso aristotélico a la estructura del silogismo práctico e incorpora, en cambio, los elementos más característicos de la concepción estoica. Ello no implica, sin embargo, el abandono de la tesis básica de la concepción aristotélica de la motivación, por oposición al intelectualismo socrático, a saber: la tesis de la primacía del deseo, en todas sus posibles formas, como factor que da cuenta del origen del movimiento voluntario y la acción. (shrink)

The Neoplatonic notion of “emanation” implies a required progression through hierarchical stages, originating from the highest principle (the One or God) and cascading down through a series of principles. While this process is deemed necessary, it is also inherently good, even “choiceworthy”, aligning with the identification of the first principle with the Good. Plotinus, a prominent Neoplatonist, emphasizes the beauty and goodness of the sensible world, governed by divine providence. This perspective, transmitted through Arabic adaptations of Plotinus, influences Islamic philosophers (...) too. This paper delves into the thought of the Ismāʿīlī philosopher Abū Yaʿqūb al-Sijistānī (d. after. 349/971), exploring the interplay of necessity and goodness in his cosmology, with a focus on non-human animals. Sijistānī’s Persian Uncovering the Veiled provides a unique perspective on animals, presenting them as both necessary unfoldings of the universal intellect and inherently good beings with intrinsic value. The paper concludes with an appendix featuring an improved edition and English translation of relevant passages. (shrink)