Averroes on Intellect provides a detailed analysis of the Muslim philosopher Averroes 's notorious unicity thesis -- the view that there is only one separate and eternal intellect for all human beings. It focuses directly on Averroes' arguments, both from the text of Aristotle's De Anima and, more importantly, his own philosophical arguments in the Long Commentary on the De Anima. Stephen Ogden defends Averroes' interpretation of De Anima using a combination of Greek, Arabic, Latin, and contemporary sources. Yet, Ogden (...) also insists that Averroes is not merely a 'commentator' but an incisive philosopher in his own right. The author thus reconstructs and analyzes Averroes' two most significant independent philosophical arguments, the Determinate Particular Argument and the Unity Argument. Alternative ancient and medieval views are also considered throughout, especially from two important foils before and after Averroes, namely, Avicenna and Thomas Aquinas. Aquinas' most famous and penetrating arguments against the unicity thesis are also addressed. Finally, Ogden considers Averroes' own objections to broader metaphysical views of the soul like Avicenna's and Aquinas', which agree with him on several key points including the immateriality of the intellect and the individuation of human souls by matter, while still diverging on the number and substantial nature of the intellect. The central goal of this book is to provide readers with a single study of Averroes' most pivotal arguments on intellect, consolidating and building on recent scholarship and offering a comprehensive case for his unicity thesis in the wider context of Aristotelian epistemology and metaphysics. (shrink)

One of the largest ongoing debates in scholarship on Avicenna concerns his epistemology of the first acquisition of intelligible forms or concepts. “Emanationists” hold that intelligibles are emanated by the separate Active Intellect directly into human minds. “ionists” hold that intelligibles are abstracted by the human intellect from sensory images. Neither of these positions has a satisfactory grip on Avicenna’s philosophy. I propose that the two positions can be reconciled because Avicenna states in many texts that what the AI emanates (...) is a power, and not the various intelligible forms. I argue that this can only be the power of abstraction itself. This new interpretation does greater justice to Avicenna’s system and reveals his unique place in the history of epistemology. (shrink)

This chapter shows even tighter textual and conceptual connections between these philosophers, delineating how Spinoza drew from Avicenna on the definition of essence and the essence/existence distinction. Spinoza departs from Avicenna, potentially regarding the tendency of essences for existence and especially regarding their universality and particularity. Multiple doses of Avicennianism likely made their way into Spinoza's bloodstream. Avicenna's Najāt and the IP are the most likely sources for Maimonides's own knowledge of Avicenna. In medieval philosophy, including Avicenna accidents are real (...) beings and are isomorphic to Spinoza's modes. As may already be clear and is well‐attested, Avicenna and Spinoza agree that the essence/existence distinction only holds for things other than God. Spinoza's apparent insistence on essence as particular in itself seems to a more fundamental contrast with Avicenna and a more obviously modern/late medieval innovation than Spinoza's utilization of God's nominal essence in an ontological proof. (shrink)

Averroes is well-known for his controversial thesis that there is only one separate intellect for all humankind. This article provides a detailed analysis of Averroes’s Unity Argument from his Long Commentary on De Anima, which argues from unified intelligible concepts to a single transcendent intellect. I set out the Unity Argument in its textual and philosophical context, explain exactly how the argument works on a new interpretation of its infinite regress, and offer some brief suggestions as to how it might (...) be further evaluated in light of alternative ancient and medieval theories. Ultimately, I demonstrate that the Unity Argument is Averroes’s most important philosophical argument for his distinctive view of intellect. (shrink)

Averroes held the controversial thesis that there is only one separate material or possible intellect for all humans. This paper analyzes a passage from his Long Commentary on the De Anima which has been thought to constitute a primary philosophical argument for the view. It is called the Determinate Particular Argument, because it contends that the material intellect cannot be a determinate particular if it is to be the ontological receptacle of universal intelligible forms. After defending one crucial premise, it (...) will be shown how the key term “determinate particular” must be qualified to avoid an inconsistency with Averroes’s metaphysics and his position on the species membership of separate substances. Given this qualification in the face of competing views, the paper concludes that the Determinate Particular Argument should not be taken as a sufficient and independent argument for Averroes’s full thesis on the intellect. (shrink)