Avicenna

Shahāb ad-Dīn" Yahya ibn Habash ibn Amirak as-Suhrawardī, (also Shaikh al-Ishraq, Shaikh al-Maqtul) was founder of the illuminationist school (Ar. Hikmat al-ishraq; Pers. falsafaye ešrāqi ). Derived from “illumination,” a conventional translation of the Arabic term ishraq (lit. radiance, shining of the rising sun), “illuminationism” refers to the doctrine of the Ishraqiyyun, a school of philosophical and mystical thought of various Graeco-Oriental roots whose principles were propounded as an ancient “science of lights” (‘ilm al-anwar) . He chose this title to (...) distinguish his philosophical theory from mashshaī's philosophy; and he is one of the first philosophers to elaborate on an old tradition. His approach Adopted from Zoroastrian and Platonic ideas. In fact, he associates his science of lights principally with the names of Plato, Hermes, Empedokles, Pythagoras, and the ‘Oriental principle concerning light and darkness’ of the sages of ancient Iran. (shrink)

This article discusses Ibn Sīnā’s reasons for upholding the eternity of the world in his major philosophical writings and the ensuing heated debate between his detractors (al-Ghazālī, al-Shahrastānī and al-Rāzī) and supporters (al-Ṭūsī and al-Āmidī). I argue that notwithstanding the responses and surrejoinders it had elicited, Ibn Sīnā’s position on the issue is indeed coherent and irrefutable, since he distinguishes three modes of eternity, corresponding to the hierarchy of beings which he introduced, namely, (i) absolutely eternal (by virtue of itself); (...) (ii) relatively eternal (by virtue of something else); and (iii) not eternal both considered per se as well per aliud. With this distinction he evades both horns of the dilemma: either the universe is eternal or it is not eternal. On Ibn Sīnā’s account, therefore, the universe is both eternal and not eternal. It is eternal because the efficient cause that necessitates and sustains its existence is eternal, but also not eternal in view of its essential contingency. (shrink)

I seek to explicate the ways in which the soul is deemed immaterial in two main strands of Islamic philosophy, and then consider some arguments for the immateriality of the soul. To do so, I first overview Avicenna’s theory of the spiritual incipience (al-ḥudūth al-rūḥānī) of the soul and his version of substance dualism. I will then discuss Mullā Ṣadrā’s view of the physical incipience (al-ḥudūth al-jismānī) of the soul and how the soul emerges and develops towards immateriality on his (...) account. I then overview and discuss five of the most important arguments presented by these two great Muslim philosophers in favor of the immateriality of the soul. To do so, I will also point out some of the main contemporary physicalistic views of the nature of mind and mental states. I will then argue that arguments for the immateriality of the soul – dealt with here – do not indeed target or challenge any significant versions of contemporary physicalism. Moreover, these arguments involve conflations of epistemological or ontological issues. (shrink)

In late Renaissance medicine, the example of digestion was frequently invoked to prove the elemental composition of the human body. Food was considered as being decomposed in its first elements by the stomach, and digested into a thick juice, which was assimilated by the liver and the body parts. Such a process points to the structure of the human body into four elements that are transformed into different types of humors during several stages of “concoction”. This chapter examines the Galenic (...) interpretation of digestion expounded by the French physician Jean Fernel (1497–1558) in his Physiologia (1567). In this treatise, Fernel states the body composition into elemental portions, while stressing the role of the “innate heat” as the physiological counterpart of the body’s essence or “substantial form”. He applies this view in his account of digestion, where he states that the conversion of food follows the rule of “mixture”. This chapter aims to explore how Fernel applies his interpretation of elements and innate heat to the process of digestion, as well as his sources in Galen’s De facultatibus naturalibus, Avicenna’s Canon and Aristotle’s Meteorologica. It first examines the role of the natural soul and its “nourishing” faculties in nutrition as a physiological function. It then considers the role of elements, humors and innate heat during the “concoction” of food in the stomach, liver and veins. (shrink)

In this article, three concepts that constitute the pillars of sciences, namely the subject, principle and problem, will be examined relying on Avicenna’s (d. 428/1037) book of Burhān. These three concepts, which generally determine the scope of scientific research and the principles on which it should be based, were introduced systematically for the first time by Aristotle (d. 322 BC) in the history of thought. Through these concepts, philosophical sciences could be distinguished from one another and it became possible for (...) each science to examine specific parts of existence. This distinction, which was also adopted by the scholars of Islamic thought, has presented such an integrity that neither philosophical disciplines nor religious sciences could remain indifferent. As a matter of fact, especially in the later period of theologicians, the information was considered as science only if it was based on these three concepts. Therefore, it can be asserted that these three concepts were considered as the measure of scientific activity, first by peripatetic philosophy and later by other disciplines. (shrink)

Avicenna's proof for the existence of God (the Necessary Existent) in the Metaphysics of the Salvation relies on the claim that every possible existent shares a common cause. I argue that Avicenna has good reason to hold this claim given that he thinks that (1) every essentially ordered causal series originates in a first, common cause and that (2) every possible existent belongs to an essentially ordered series. Showing Avicenna's commitment to 1 and 2 allows me to respond to Herbert (...) Davidson's and Richard Swinburne's claim that Avicenna's proof for the Necessary Existent is incomplete and fallacious -/- . (shrink)

Avicenna, beside his theoretical discussions about experimentation, practically applied his experimental method to natural sciences studies such as medicine, biology, and meteorology. His theoretical discussions subsume propositions concerning the conditions under which experimental knowledge is attained, the components of this knowledge and its functions. Some of these propositions are as follows: necessity of recurrent observations for acquiring experimental knowledge, certainty plus conditional universality of such knowledge, and its role as demonstrative premises. Investigating the application of his theory in natural sciences (...) propound two new features which were not elaborated in the theoretical discussions: fallibility of experimental knowledge and necessity of systematic observation. This research, using the analytic method and referring to both philosophical and scientific works of Avicenna, clarifies that a comprehensive definition of experimentation is dependent on considering extracted points from practical application of experimental knowledge, beside its theoretical components. (shrink)

We reconstruct as much as we can the part of al-Fārābī's treatment of modal logic that is missing from the surviving pages of his Long Commentary on the Prior Analytics. We use as a basis the quotations from this work in Ibn Sīnā, Ibn Rushd and Maimonides, together with relevant material from al-Fārābī's other writings. We present a case that al-Fārābī's treatment of the dictum de omni had a decisive effect on the development and presentation of Ibn Sīnā's modal logic. (...) We give further evidence that the Harmonisation of the Opinions of Plato and Aristotle was not written by al-Fārābī. (shrink)

In this study, lexical and terminological meanings of the term “nature” were analyzed and some Peripatetical Islamic philosophers’ opinions about this term were included. A comparison was made between the words “tabiat” and “doğa” which are used in Turkish language to meet the term “nature”. The realm of existence which Peripatetical Islamic philosophers have used “nature” in as a noun was explained. Debate between Ibn Sīnā and Ibn Rushd (Averroes) about the necessity of proving the term “nature” was mentioned. Ibn (...) Sīnā's views on what “nature” portends in terms of being a source of motion and duration in objects were presented in comparison with Aristotle. Later definitions which are made by philosophers for “nature” as a term were presented. Peripatetical Islamic philosophers’ definition of the term “nature” which has a critical role in Islamic philosophy and the way they use it differentiates from that of Aristotle’s. The term “nature” which they especially use to explain every kind of becoming and motion enables to connect all reason to Allah in aspects of etymology. And it is also known that the term “nature” serves as a basis for differentiation between physics and metaphysics. The purpose of this article is to clarify the possible usages of the term “nature” in relation to new theories. (shrink)

I will argue that Avicenna’s and Aquinas’s faith-based virtue ethics are crucially different from Aristotle’s virtue ethics, in that their ethics hinges on the theological notion of heaven, which is constitutively independent of the ethical life of the agent. As a result, their faith-based virtue ethics is objectionable. Moreover, I will also argue that the notion of heaven that Avicenna and Aquinas deploy in their moral philosophy is problematic; for it can rationally permit believers to commit morally horrendous actions. Finally, (...) I will present a Kantian notion of heaven which is immune to the aforementioned moral objection. The Kantian notion of heaven, nevertheless, cannot ground any view of ethics as it is constitutively dependent on the ethical life of the agent. (shrink)

‘[A] valid concept of “Islam” must denote and connote all possible “Islams,” whether abstract or “real,” mental or social’ (104)... Ahmed seeks to avoid two major pitfalls: (1) making Islam into a static essence or a category within an essentialist framework – such as proscription/prescription, ‘religion’,‘civilization’, ‘culture’, ‘orthodoxy’, etc., and (2) rendering Islam into a totally incoherent concept by conceding that there are as many islams as there are communities or individuals. Ahmed’s thesis (presented in Chapter 5) is that Islam (...) is best conceptualized as a process of meaning-making or hermeneutical engagement in which the human agent engages with the Divine Revelation granted to Muhammad in one or more of this Revelation’s hierarchical dimensions – Pre-Text, Text, and Con-Text – in order to constitute meaning for himself.". (shrink)

This study is the first comprehensive analysis of the physical theory of the Islamic philosopher Avicenna (d. 1037). It seeks to understand his contribution against the developments within the preceding Greek and Arabic intellectual milieus, and to appreciate his philosophy as such by emphasising his independence as a critical and systematic thinker. Exploring Avicenna’s method of "teaching and learning," it investigates the implications of his account of the natural body as a three-dimensionally extended composite of matter and form, and examines (...) his views on nature as a principle of motion and his analysis of its relation to soul. Moreover, it demonstrates how Avicenna defends the Aristotelian conception of place against the strident criticism of his predecessors, among other things, by disproving the existence of void and space. Finally, it sheds new light on Avicenna’s account of the essence and the existence of time. For the first time taking into account the entire range of Avicenna’s major writings, this study fills a gap in our understanding both of the history of natural philosophy in general and of the philosophy of Avicenna in particular. (shrink)

In his article on the foundations of Ficino’s ideas on magic, James Hankins observes that, where Ficino justifies non-material causation in the universe, he is heavily indebted to Avicenna. As Hankins also points out, this Avicennan idea clearly violates the Aristotelian maxim that ‘physical causation requires contact’. Because Avicenna holds the view that the soul is neither a physical entity nor simply the form of body, Avicenna’s consent to the soul to manipulate material objects means assignment of the soul to (...) perform actions upon physical nature. According to Hankins, this consent resorts to a vertical connectivity between physical objects and the human soul. However, we do not see in Hankins’s argument how this connection can occur according to Avicenna and on what grounds Avicenna lets the soul cause changes on material objects. How does this non-material causation take place? (shrink)

This paper investigates Péter Pázmány’s theory of mixtures from his exegesis of Meteorologica IV, in the context of sixteenth-century scholarship on Aristotle’s Meteorologica. It aims to contribute to a discussion of Anneliese Maier’s thesis concerning the incompatibility between hylomorphism and the theory of elements in the Aristotelian tradition. It presents two problems: the placement of Meteorologica IV in the Jesuit cursus on physics and the conceptualization of putrefaction as a type of substantial mutation. Through an analysis of these issues, it (...) shows how sixteenth-century exegesis imposes the hylomorphic thesis onto the subject matter of meteorology and how the hylomorphic theory of substantial change can be adapted in order to accommodate the theory of elements. The case being made is that Meteorologica is a privileged place where hylomorphism and the theory of elements meet and that the late Aristotelian theory of mixtures sought to accommodate both theories of material substance. (shrink)

This paper presents Duns Scotus’s theory of mixture in the context of medieval discussions over Aristotle’s theory of mixed bodies. It revisits the accounts of mixture given by Avicenna, Averroes, and Thomas Aquinas, before presenting Scotus’s account as a reaction to Averroes. It argues that Duns Scotus rejected the Aristotelian theory of mixture altogether and that his account went contrary to the entire Latin tradition. Scotus denies that mixts arise out of the four classical elements and he maintains that both (...) the elemental forms and the elemental qualities are lost in the mixture. Consequently, he denies the distinction between the process of mixture and that of substantial change through generation and corruption. The reassessment of Scotus’s account modifies the current historical representation of this discussion, inherited from Anneliese Maier. (shrink)

The aim of this paper is to clarify Spinoza’s views on some of the most fundamental issues of his metaphysics: the nature of God’s attributes, the nature of existence and eternity, and the relation between essence and existence in God. While there is an extensive literature on each of these topics, it seems that the following question was hardly raised so far: What is, for Spinoza, the relation between God’s existence and the divine attributes? Given Spinoza’s claims that there are (...) intimate connections between God’s essence and his existence – “God’s essence and his existence are one and the same”(E1p20) – and between God’s essence and the attributes – “By attribute I understand what the intellect perceives of substance, as constituting its essence” (E1d4), we would naturally expect that by transitivity, there is a significant relation between God’s existence and the attributes. Yet, as far as I know, there is little, if any, attempt in the existing literature to explicate such a relation, and it is one of my aims of this study to both raise the question and answer it. Eventually, I will argue that for Spinoza God is nothing but existence, and that the divine attributes are just fundamental kinds of existence, or, what is the same, as I will later argue, the intellect’s most fundamental and adequate conceptions of existence. In the first part of the paper I provide some background for Spinoza’s brief discussion in the TTP of God’s name and essence by studying the claims of Maimonides in the Guide of the Perplexed that God’s true essence is necessary existence, and that this essence is denoted by the ineffable Hebrew name of God, the Tetragrammaton (YHVH). In the second part of the paper I point out similar claims Spinoza presents in the TTP, and show how they respond to and echo Maimonides’ discussion in the Guide. In the third part, I examine Spinoza’s apparently conflicting claims in the Ethics about the relationship between God’s essence and existence. In some places Spinoza claims that God’s essence and existence are strictly identical (E1p10: “God’s essence his existence are one and the same”), but in other passages he makes the apparently much more modest claim that God’s essence involves existence (E1d1, E1p7d and E1p11d), which may lead one to believe that there is more to God’s essence than mere existence. I show that Spinoza’s understanding of the relation denoted by the Latin ‘involvit’ is consistent with the strict identification of essence and existence in God, and that Spinoza identifies God’s essence with self-necessitated existence, or eternity. Indeed, Spinoza’s understanding of eternity [aeternitas] as self-necessitated existence (E1d8) is one of the very few Spinozistic concepts that has no trace in Descartes. In this part I will also solve the long-standing problem of the sense in which the infinite modes can be called ‘eternal.’ In the fourth part I turn to the relation between the divine attributes and God’s existence and argue that, for Spinoza, the attributes are self-sufficient and adequate conceptions of existence. Finally, I will attempt to explain what brought Spinoza to deify existence. -/- Part I: “In that Day shall God be One, and his Name One”- Maimonides on God’s Name and Essence. -/- 1.1 Before we delve into the texts, let me suggest a few distinctions between various views on the issue of the relation between essence and existence in God. The view I suspect both Maimonides and Spinoza subscribe to can be termed the divine essence-existence Identity Thesis. -/- Identity Thesis (IT): God’s essence is existence and nothing but existence. We should distinguish the Identity Thesis from the much more common view according to which God’s essence contains existence, or (which I take to be roughly the same) that existence is one of the properties or perfections which constitute God’s essence. The latter view allows for the possibility (though it does not demand) that there is more to God’s essence than bare existence (e.g., God’s essence may include omniscience, omnipotence, etc.). I will term this view the divine essence-existence Containment Thesis. (shrink)

This article explores Ibn Sīnā’s cosmological views and analyzes the underlying assumptions and arguments in support of the theories to which he subscribes. These include the notions of the central and stationary position of the earth in a finite, spherical cosmos, the impossibility of the existence of many universes, and the metaphysical forces that drive, guide, and maintain the perpetual movement of cosmic bodies.

This article is intended to provide insight into aspects of Ibn Sīnā’s natural philosophy. It will summarize his interpretation of the Aristotelian four causes, explicate his theory of efficient and necessary causal linkage, and analyze his arguments for causal efficacy. Finally, it will discuss Ibn Sīnā’s views on chance happenings in nature.

The question of cosmic beginning has always attracted considerable attention from serious thinkers past and present. Among many contesting theories that have emerged, that of emanation was appropriated by Muslim philosophers like Ibn Sînâ in order to reconcile the Aristotelian doctrine of the eternity of matter with the teaching of al-Qur’ân on the One Creator-God. According to this theory, the universe, which comprises a multitude of entities, is generated from a transcendent Being, the One, that is unitary, through the medium (...) of a hierarchy of immaterial substances. While the ultimate source is undiminished, the beings which are emanated are progressively less perfect as they are further removed from the first principle. The process is conceived as being atemporal and often compared to the efflux of light from a luminous body, or to water flowing from a spring. This metaphysical theory has enabled Ibn Sînâ to solve the vexed problem: given an eternally existing world and one eternally existing God, how can the two necessarily co-exist without having the perfect, simple unity of God destroyed by contact with the multiplicity of material things? The following essay delineates and evaluates both Ibn Sînâ’s arguments as well as the counter-arguments of his critics. (shrink)

This paper will argue that the order and the unity of St. Thomas Aquinas’s five ways can be elucidated through a consideration of St. Thomas’s appropriation of an Avicennian insight that he used to order and unify the wisdom of the Aristotelian and Abrahamic philosophical traditions towards the existence of God. I will begin with a central aporia from Aristotle’s Metaphysics. Aristotle says that the science of first philosophy has three different theoretical vectors: ontology, aitiology, and theology. But how can (...) all three be united into a single Aristotelian science? In his Metaphysics of the Healing, Avicenna resolved the impasse by taking the ontological vector as the subject of metaphysics. He then integrated the question of the four first causes into the penultimate stage of his demonstration for the existence of God, thereby placing aitiological and theological questions among the ultimate concerns of a unified Aristotelian metaphysics. In the five ways, St. Thomas integrated Avicenna’s Aristotelian search for the first four causes into the last four of his five ways, by showing that each of the four aitiological orders terminate in an ultimate first cause that we call God. Finally, by appending the proof from the Physics to the beginning of the five ways, St. Thomas was able to show that the ultimate aim of both natural philosophy and metaphysics is the divine first principle, which is the beginning and subject of sacra doctrina. (shrink)

In this paper I shall discuss the relationship between the two known Arabic translations of Aristotle’s Posterior Analytics and Avicenna’s Kitāb al-Burhān. I shall argue that Avicenna relies on both (1) Abū Bishr Mattā’s translation and (2) the anonymous translation used by Averroes in the Long Commentary as well as in the Middle Commentary (and also indirectly preserved by Gerard of Cremona’s Latin translation of Aristotle’s work). Although, generally speaking, the problem is relevant to the history of the transmission of (...) the Posterior Analytics from Greek through Syriac into Arabic, I do not intend to give a systematic presentation of the historical setting in which Aristotle’s work became readily available to the Arabo-Islamic culture. My aim here is rather to isolate and discuss some pieces of evidence concerning the texts that seem to have been available to Avicenna. In addition to that, I shall also provide evidence concerning the relationship with the Greek commentary tradition (in particular Philoponus and Themistius) that is likely to have influenced Avicenna in his discussion of Aristotle’s theory of demonstration and scientific knowledge. (shrink)

En la historia no hay solución de continuidad. Este principio racionalista sirve para desmitificar la historia de la filosofía que la academia occidental ha fabricado desde un punto de vista etnocéntrico. Desde su nacimiento en Grecia, el racionalismo penetró en Oriente Medio y Norte de África, para pasar luego a Europa a través del desarrollo científico y filosófico de al-Ándalus en la Edad Media.

Contrary to the widespread assumption, philosophy in the Islamic world did not begin with al-Kindi nor ended with Ibn Rushd (Averroes). This article looks into the metaphysics part of Sayf al-Din al-Amidi's kitab al-Nur al-Bahir fi al-Hikam al-Zawahir ('The Splendid Light on the Bright Wisdom') in order to show the continuity of philosophy in post-classical period.

The paper provides some introductory comments and a preliminary translation of Avicenna’s Burhān, IV, 2. I shall first set the stage by outlining the structure of the book (sec. 1). I will then briefly introduce (sec. 2) a number of notions that are dealt with in the first treatise of the Burhān (e.g. definition, description). Burhān, IV, 2 is split into two parts: the first focuses mainly on Aristotle’s An. Post., B, 4, whereas the second covers some of the topics (...) of B, 5 and B, 6. Accordingly, sec. 3 will be devoted to a cursory presentation of Aristotle’s arguments in An. Post., B, 4 along with a more detailed discussion of its Avicennan counterpart, focusing on the indemonstrability of definition; sec. 4, finally, will be a presentation of the second part of the chapter, concerning the relationship between definition and division. An English translation of the entire chapter is appended to the paper and is accompanied by some notes. (shrink)

This article discusses Ibn Sina's idea of 'nature' and his theory of change, including that of substantial change, in comparison with the views held by Aristotle and some Pre-socratic philosophers.

Few theses characterize more especifically the metaphysics of Aquinas than the thesis of the real distinction between being and essence, the thesis of being as the act of the essence, the thesis of the ontological contingency of the universe and the conception of the cause of the existence of things as subsistent being. The aim of the present work is to prove that these theses, as well as others derived from them, like the claim of the identity of essence and (...) being in God and that of God’s simplicity, result from the previous absolutization of essence, that is, from Aquinas’ essencialist and ontologizing interpretation of the fact that existent individuals are not explicitly mentioned in definitions. (shrink)

In this paper, I argue that Edward Said’s central thesis in Orientalism has a direct explanatory role to play in our understanding of the work produced in at least one area of scholarship about the Arab and Islamic worlds, namely Arab-Islamic philosophy from the classical or medieval period. Moreover, I claim that it continues to play this role not only for scholarship produced in the West by Western scholars but also within the Arab world itself. After recalling some traditional varieties (...) of Orientalism in the study of Islamic philosophy, I go on to isolate some neo-Orientalist theses and positions. Then I identify what I call “Oriental Orientalism” in the study of Islamic philosophy, which originates in the Arab world itself. In conclusion, I speculate as to why Orientalism persists in scholarship about the Islamic world, more than a quarter of a century after Said first unmasked it. Finally, I distinguish two accounts of Said's interpretive stance and attempt to justify a particular reading of his philosophical framework. (shrink)

It is demonstrated here that despite apparent differences and their adherence to two different schools of thought, Suhrawardī's epistemology is essentially Ibn Sīnian, and even his theory of "knowledge by Presence" ('ilm al-hudurī), which is considered to be uniquely his, is at least inspired by Ibn Sīnā. I argue that Ibn Sīnā's peripatetic orientation and Suhrawardī's ishrāqī perspective have both maintained and adhered to the same epistemological framework while the philosophical languages in which their respective epistemologies are discussed are different.

Intuition (hads) as a function of 'aql, fitrah and khirad, according to Ibn Sina, not only constitutes the basis of all learning, and hence a way for arriving independently at new knowledge, but serves as means for verifying what has been studied and learned from others, representing direct insight into the true nature of reality as a coherent whole. Some questions remain, however, as to what distinguishes intuition from other kinds of cognition and what is so special about intuitive knowledge (...) and, furthermore, "How is intuitive knowledge possible or what are the conditions of intuitive cognition?" To provide an analytical account of Ibn Sina's thought and examine his statements on this matter is the aim of this article. (shrink)