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Ibn Rushd
ابن رشد
Statue of Averroes in Córdoba, Spain.jpg
Statue of Ibn Rushd in Córdoba, Spain
Born 1126
Córdoba, Al-Andalus, Almoravid emirate (in present-day Spain)
Died 11 December 1198 (aged 72 years)
Marrakesh, Maghreb, Almohad Caliphate (in present-day Morocco)
Era Medieval, Islamic Golden Age
Region Islamic philosophy
School Aristotelianism (philosophy)
Maliki (jurisprudence)
Main interests
Islamic theology, philosophy, Islamic jurisprudence, medicine, astronomy, physics, linguistics
Notable ideas
Relation between Islam and philosophy, non-contradiction of reason and revelation, unity of the intellect

Ibn Rushd (Arabic: ابن رشد‎; full name Arabic: أبو الوليد محمد ابن احمد ابن رشد‎, translit. ʾAbū l-Walīd Muḥammad Ibn ʾAḥmad Ibn Rushd; 1126 – 11 December 1198), often Latinized as Averroes (/əˈvɛrz/), was an Andalusian philosopher and thinker who wrote about many subjects, including philosophy, theology, medicine, astronomy, physics, Islamic jurisprudence and law, and linguistics. His philosophical works include numerous commentaries on Aristotle, for which he was known in the West as The Commentator. He also served as a judge and a court physician for the Almohad caliphate.

He was born in Córdoba in 1126 to a family of prominent judges—his grandfather was the celebrated chief judge of the city. In 1169 he was introduced to the caliph Abu Yaqub Yusuf, who was impressed with his knowledge, became his patron and commissioned many of Averroes' commentaries. Averroes later served multiple terms as a judge in Seville and Córdoba. In 1182, he was appointed as court physician and the chief judge of Córdoba. After Abu Yusuf's death in 1184, he remained in royal favor until he fell into disgrace in 1195. He was targeted on various charges—likely for political reasons—and was exiled to nearby Lucena. He returned to royal favor shortly before his death on December 11, 1198.

Averroes was a strong proponent of Aristotelianism; he attempted to restore what he considered the original teachings of Aristotle and opposed the Neoplatonist tendencies of earlier Muslim thinkers, such as Al-Farabi and Avicenna. He also defended the pursuit of philosophy against criticism by Ashari theologians such as Al-Ghazali. Averroes argued that philosophy was permissible in Islam and even compulsory among certain elites. He also argued scriptural text should be interpreted allegorically if it appeared to contradict conclusions reached by reason and philosophy. His legacy in the Islamic world was modest for geographical and intellectual reasons.

In the West, Averroes was known for his extensive commentaries on Aristotle, many of which were translated into Latin and Hebrew. The translations of his work reawakened Western European interest in Aristotle and Greek thinkers, an area of study that had been widely abandoned after the fall of the Roman Empire. His thoughts generated controversies in Latin Christendom and triggered a philosophical movement called Averroism based on his writings. His unity of the intellect thesis, proposing that all humans share the same intellect, became one of the most well-known and controversial Averroist doctrines in the West. His works were condemned by the Catholic Church in 1270 and 1277. Although weakened by the condemnations and sustained critique by Thomas Aquinas, Latin Averroism continued to attract followers up to the sixteenth century.


Ibn Rushd's full, transliterated Arabic name is "ʾAbū l-Walīd Muḥammad Ibn ʾAḥmad Ibn Rushd".[1][2] Sometimes, the nickname al-Hafid ("The Grandson") is appended to his name, to distinguish him from his similarly-named grandfather, a famous judge and jurist.[3] "Averroes" is the Medieval Latin form of "Ibn Rushd"; it was derived from the Spanish pronunciation of the original Arabic name, wherein "Ibn" becomes "Aben" or "Aven".[4] The Latinized name is also spelled in some instances as "Averroës", "Averrhoës" or "Averroès", with varying accents to denote that the "o" and "e" are separate vowels and not an "œ" diphthong.[5] Other forms of the name include "Ibin-Ros-din", "Filius Rosadis", "Ibn-Rusid", "Ben-Raxid", "Ibn-Ruschod", "Den-Resched", "Aben-Rassad", "Aben-Rasd", "Aben-Rust", "Avenrosdy", "Avenryz", "Adveroys", "Benroist", "Avenroyth" and "Averroysta".[6]


Ibn Rushd was the preeminent philosopher in the history of Al-Andalus. 14th-century painting by Andrea di Bonaiuto

Early life and education

Muhammad ibn Ahmad ibn Muhammad ibn Rushd was born in 1126 in Córdoba.[7] His family was well-known in the city for their public service, especially in the legal and religious fields.[7] His grandfather Abu al-Walid Muhammad (d. 1126) was the chief judge (qadi) of Córdoba and the imam of the Great Mosque of Córdoba under the Almoravids.[7][1] His father Abu al-Qasim Ahmad was not as celebrated as his grandfather, but was also chief judge until the Almoravids were replaced by the Almohads in 1146.[7]

According to his traditional biographers, Averroes' education was "excellent",[1] beginning with studies in hadith (traditions of Prophet Muhammad), fiqh (jurisprudence), medicine and theology. He learned Maliki jurisprudence under al-Hafiz Abu Muhammad ibn Rizq and hadith with Ibn Bashkuwal, a student of his grandfather.[1][8] His father also taught him about jurisprudence, including on Imam Malik's magnum opus the Muwatta, which Averroes went on to memorize.[9][10] He studied medicine under Abu Jafar Jarim al-Tajail, who probably taught him philosophy too.[11] He also knew the works of the philosopher Ibn Bajjah (also known as Avempace), and might have known him personally or been tutored by him.[7][8] He joined a regular meeting of philosophers, physicians and poets in Seville which was attended by philosophers Ibn Tufayl and Ibn Zuhr as well as the future caliph Abu Yusuf Yaqub.[10] He also studied the kalam theology of the Ashari school, which he criticized later in life.[11] His 13th century biographer Ibn al-Abbar said he was more interested in the study of law and its principles (usul) than that of hadith and he was especially competent in the field of khilaf (disputes and controversies in the Islamic jurisprudence).[11] Ibn al-Abbar also mentioned his interests in "the sciences of the ancients", probably in reference to Greek philosophy and sciences.[11]


Averroes served various official positions in the Almohad caliphate, whose territories are depicted in this map.

By 1153 Averroes was in Marrakesh (in present-day Morocco), the capital of the Almohad caliphate, to perform astronomical observations and to support the Almohad project of building new colleges.[10][11] He was hoping to find physical laws of astronomical movements instead of only the mathematical laws known at the time but this research was unsuccessful.[11] During his stay in Marrakesh he likely met Ibn Tufayl, a renowned philosopher and the author of Hayy ibn Yaqdhan who was also the court physician in Marrakesh.[11][8] Averroes and ibn Tufayl became friends despite the differences in their philosophies.[12][8]

In 1169 Ibn Tufayl introduced Averroes to the Almohad caliph Abu Yaqub Yusuf.[13][11] In a famous account reported by historian Abdelwahid al-Marrakushi the caliph asked Averroes whether the heavens had existed since eternity or had a beginning.[13][11] Knowing this question was controversial and worried a wrong answer could put him in danger, Averroes was did not answer.[13] The caliph then elaborated the views of Plato, Aristotle and Muslim philosophers on the topic and discussed them with Ibn Tufayl.[13][11] This display of knowledge put Averroes at ease; Averroes then explained his own views on the subject, which impressed the caliph.[11] Averroes was similarly impressed by Abu Yaqub and later said the caliph had "a profuseness of learning I did not suspect".[13]

After their introduction, Averroes remained in Abu Yaqub's favor until the caliph's death in 1184.[11] When the caliph complained to Ibn Tufayl about the difficulty of understanding Aristotle's work, Ibn Tufayl recommended to the caliph that Averroes work on explaining it.[13][11] This was the beginning of Averroes' massive commentaries on Aristotle;[13] his first works on the subject were written in 1169.[13]

In the same year, Averroes was appointed qadi (judge) in Seville.[11][14] In 1171 he became qadi in his hometown of Córdoba.[11][9] As qadi he would decide cases and give fatwas (legal opinions) based on the Islamic law.[14] The rate of his writing increased during this time despite other obligations and his travels within the Almohad empire.[11] He also took the opportunity from his travels to conduct astronomical researches.[10] Many of his works produced between 1169 and 1179 were dated in Seville rather than Córdoba.[11] In 1179 he was again appointed qadi in Seville.[9] In 1182 he succeeded his friend Ibn Tufayl as court physician and later the same year he was appointed the chief qadi of Córdoba, a prestigious office that had once been held by his grandfather.[11][14]

In 1184 Caliph Abu Yaqub died and was succeeded by Abu Yusuf Yaqub al-Mansur.[11] Initially, Averroes remained in royal favor but in 1195 his fortune reversed.[11][13] Various charges were made against him and he was tried by a tribunal in Córdoba.[13][11] The tribunal condemned his teachings, ordered the burning of his works and banished Averroes to nearby Lucena.[11] Early biographers' reasons for this fall from grace include a possible insult to the caliph in his writings[13] but modern scholars attribute it to political reasons. The Encyclopaedia of Islam said the caliph distanced himself from Averroes to gain support from more orthodox ulema, who opposed Averroes and whose support al-Mansur needed for his war against Christian kingdoms.[11] Historian of Islamic philosophy Majid Fakhry also wrote that public pressure from traditional Maliki jurists who were opposed to Averroes played a role.[13]

After a few years, Averroes returned to court in Marrakesh and was again in the caliph's favor.[11] He died shortly afterwards, on December 11, 1198 (9 Safar 595 in the Islamic calendar).[11] He was initially buried in North Africa but his body was later moved Córdoba for another funeral, at which future Sufi mystic and philosopher Ibn Arabi (1165–1240) was present.[11]


Imaginary debate between Averroes and third-century philosopher Porphyry. Monfredo de Monte Imperiali Liber de herbis, 14th century.

Averroes was a prolific writer and his works, according to Fakhry, "covered a greater variety of subjects" than those of any of his predecessors in the East, including philosophy, medicine, jurisprudence or legal theory, and linguistics.[15] Most of his writings were commentaries on or paraphrasings of the works of Aristotle that—especially the long ones—often contain his original thoughts.[16] According to French author Ernest Renan, Averroes wrote at least 67 original works, including 28 works on philosophy, 20 on medicine, 8 on law, 5 on theology, and 4 on grammar, in addition to his commentaries on most of Aristotle's works and his commentary on Plato's The Republic.[17] Many of Averroes' works in Arabic did not survive, but their translations into Hebrew or Latin did.[18] For example, of his long commentaries on Aristotle, only "a tiny handful of Arabic manuscript remains".[19]

Commentaries on Aristotle

An Arabic illustration of Aristotle teaching a student, c. 1220. Aristotle's works are the subject of extensive commentaries by Averroes.

Averroes wrote commentaries on nearly all of Aristotle's surviving works.[15] The only exception is Politics, which he did not have access to, so he wrote commentaries on Plato's Republic.[15] He classified his commentaries into three categories that modern scholars have named short, middle and long commentaries.[19] Most of the short commentaries (jami) were written early in his career and contain summaries of Aristotlean doctrines.[16] The middle commentaries (talkhis) contain paraphrases that clarify and simplify Aristotle's original text.[16] The middle commentaries were probably written in response to his patron caliph Abu Yaqub Yusuf's complaints about the difficulty of understanding Aristotle's original texts and to help others in a similar position.[16][19] The long commentaries (tafsir or sharh), or line-by-line commentaries, include the complete text of the original works with a detailed analysis of each line.[20] The long commentaries are very detailed and contain a high degree of original thought,[16] and were unlikely to be intended for a general audience.[19] Only five of Aristotle's works had all three types of commentaries: Physics, Metaphysics, On the Soul, On the Heavens, and Posterior Analytics.[15]

Standalone philosophical works

Averroes also wrote standalone philosophical treatises, including On the Intellect, On the Syllogism, On Conjunction with the Active Intellect, On Time, On the Heavenly Sphere and On the Motion of the Sphere. He also wrote several polemics: Essay on al-Farabi's Approach to Logic, as Compared to that of Aristotle, Methaphysical Questions Dealt with in the Book of Healing by Ibn Sina, and Rebuttal of Ibn Sina's Classification of Existing Entities.[15]

Islamic theology

Scholarly sources, including Fakhry and the Encyclopedia of Islam, named three theological works as Averroes' key writings in this area. Fasl al-Maqal ("The Decisive Treatise") is a 1178 treatise that argues for the compatibility of Islam and philosophy.[21] Al-Kashf 'an Manahij al-Adillah ("Exposition of the Methods of Proof"), written in 1179, criticizes the theologies of the Asharites,[22] and lays out Averroes' argument for proving the existence of God, as well as his thoughts on God's attributes and actions.[23] The 1180 Tahafut al-Tahafut ("Incoherence of the Incoherence") is a rebuttal of al-Ghazali's (d. 1111) landmark criticism of philosophy The Incoherence of the Philosophers. It combines ideas in his commentaries and standalone works, and uses them to respond to al-Ghazali.[24] The work also criticizes Avicenna and his neo-Platonist tendencies, sometimes agreeing with al-Ghazali's critique against him.[24]


Title page from a Latin edition of Colliget, Averroes' main work in medicine.

Averroes, who served as the royal physician at the Almohad court, wrote a number of medical treatises. The most famous was al-Kulliyat fi al-Tibb ("General Principles of Medicine", Latinized in the west as the Colliget), written around 1162, before his appointment at court.[25] The Latin translation became a medical texbook in Europe for centuries.[25] He also wrote summaries of the works of Greek physician Galen (died c. 210) and a commentary on Avicenna's Urjuzah fi al-Tibb ("Poem on Medicine").[25]

Jurisprudence and law

Averroes served multiple tenures as judge and produced multiple works in the fields of Islamic jurisprudence or legal theory. The only book that survives today is Bidāyat al-Mujtahid wa Nihāyat al-Muqtaṣid ("Primer of the Discretionary Scholar").[26] In this work he explains the legal difference between the Sunni madhhabs (schools of Islamic jurisprudence) both in practice and in their underlying juristic principles.[27] Despite his status as a Maliki judge, the book also discusses the opinion of other schools, including liberal and conservative ones.[26] Other than this surviving text, bibliographical information shows he wrote a summary of Al-Ghazali's On Legal Theory of Muslim Jurisprudence (Al-Mustasfa) and tracts on sacrifices and land tax.[28]

Philosophical ideas

Aristotelianism in the Islamic philosophical tradition

In his philosophical writings, Averroes attempted to return to Aristotelianism, which according to him had been distorted by the Neoplatonist tendencies of Muslim philosophers such as Al-Farabi and Avicenna.[29][30] He rejected al-Farabi's attempt to merge the ideas of Plato and Aristotle's, pointing out the difference between the two, such as Aristotle's rejection of Plato's theory of ideas.[31] He also criticized Al-Farabi's works on logic for misinterpreting its Aristotelian source.[32] He wrote an extensive critique of Avicenna, who was the standard-bearer of Islamic Neoplatonism in the Middle Ages.[33] He argued that Avicenna's theory of emanation had many fallacies and was not found in the works of Aristotle.[33] Averroes disagreed with Avicenna's view that existence is merely an accident added to essence, arguing the reverse; something exists per se and essence can only be found by subsequent abstraction.[34]. He also rejected Avicenna's modality and Avicenna's argument to prove the existence of God as the Necessary Existent.[35]

Relation between religion and philosophy

During Averroes' lifetime, philosophy came under attack from the Sunni Islam tradition, especially from theological schools like the traditionalist (Hanbalite) and the Ashari schools.[36] In particular, the Ashari scholar al-Ghazali (1058 – 1111) wrote The Incoherence of the Philosophers (Tahafut al-falasifa), a scathing and influential critique of the Neoplatonic philosophical tradition in the Islamic world and against the works of Avicenna in particular.[37] Among others, Al-Ghazali charged philosophers with non-belief in Islam and sought to disprove the teaching of the philosophers using logical arguments.[36][38]

In Decisive Treatise, Averroes argues that philosophy—which for him represented conclusions reached using reason and careful method—cannot contradict revelations in Islam because they are just two different methods of reaching the truth, and "truth cannot contradict truth".[39][40] When conclusions reached by philosophy appear to contradict the text of the revelation, then according to Averroes, revelation must be subjected to interpretation or allegorical understanding to remove the contradiction.[39][36] This interpretation must be done by those "rooted in knowledge"—a phrase taken by from the Quran 3:7, which for Averroes refers to philosophers who during his lifetime had access to the "highest methods of knowledge".[39][40] He also argues that the Quran calls for Muslims to study philosophy because the study and reflection of nature would increase a person's knowledge of "the Artisan" (God).[41] He quotes Quranic passages calling on Muslims to reflect on nature and used them to render a fatwa (legal opinion) that philosophy is allowed for Muslims and is probably an obligation, at least among those who have the talent for it.[42]

Averroes also distinguishes between three modes of discourse; the rhetorical (based on persuasion) accessible to the common masses; the dialectical (based on debate) and often employed by theologians and the ulama (scholars); and the demonstrative (based on logical deduction).[36][41] According to Averroes, the Quran uses the rhetorical method of inviting people to the truth, which allows it to reach the common masses with its persuasiveness,[43] whereas philosophy uses the demonstrative methods that were only available to the learned but provided the best possible understanding and knowledge.[43]

Averroes also tries to deflect Al-Ghazali's criticisms of philosophy by saying that many of them apply only to the philosophy of Avicenna and not that of Aristotle, which Averroes argues to be the true philosophy from which Avicenna deviated.[44]

Nature of God


Averroes lays out his views on the existence and nature of God in the treatise The Exposition of the Methods of Proof.[45][46] He examines and critiques the doctrines of four sects of Islam: the Asharites, the Mutazilites, the Sufis and the those he calls the "literalists" (al-hashwiyah).[46] Among other things, he examines their proofs of God's existence and critiques each one.[45] Averroes argues that there are two arguments for God's existence that he deems logically sound and in accordance to the Quran; the arguments from "providence" and "from invention".[45] The providence argument considers that the world and the universe seem finely tuned to support human life. Averroes cited the sun, the moon, the rivers, the seas and the location of humans on the earth.[45][47] According to him, this suggests a creator who created them for the welfare of mankind.[47][45] The argument from invention contends that worldly entities such as animals and plants appear to have been invented. Therefore, Averroes argues that a designer was behind the creation and that is God.[45] Averroes's two arguments are teleological in nature and not cosmological like the arguments of Aristotle and most contemporaneous Muslim kalam theologians.[48]

God's attributes

Averroes upholds the doctrine of divine unity (tawhid) and argues—in agreement with contemporary theologians—that God has seven divine attributes: knowledge, life, power, will, hearing, vision and speech. He devotes the most attention to the attribute of knowledge and argues that divine knowledge differs from human knowledge because God knows the universe because God is its cause while humans only know the universe through its effects.[45]

Averroes argues that the attribute of life can be inferred because it is the precondition of knowledge and also because God willed objects into being.[49] Power can be inferred by God's ability to bring creations into existence. Averroes also argues that knowledge and power inevitably give rise to speech. Regarding vision and speech, he says that because God created the world, he necessarily knows every part of it in the same way an artist understands his or her work intimately. Because two elements of the world are the visual and the auditory, God must necessarily possess the vision and speech.[45]

Pre-eternity of the world

In the centuries preceding Averroes, there had been a debate between Muslim thinkers questioning whether the world was created at a specific moment in time or whether it has always existed.[50] Neo-Platonic philosophers such as Al-Farabi and Avicenna argued the world has always existed.[51] This view was criticized by theologians and philosophers of the Ashari kalam tradition; in particular, al-Ghazali wrote an extensive refutation of the pre-eternity doctrine in his Incoherence of the Philosophers and accused the Neo-Platonic philosophers of unbelief (kufr).[51]

Averroes responded to Al-Ghazali in his Incoherence of the Incoherence. First, he argued that the differences between the two positions were not vast enough to warrant the charge of unbelief.[51] He also said the pre-eternity doctrine did not necessarily contradict the Quran and cited verses that mention pre-existing "throne" and "water" in passages related to creation.[52][53] Averroes argued that a careful reading of the Quran implied only the "form" of the universe was created in time but that its existence has been eternal.[52] Averroes further criticized the kalam theologians for using their own interpretations of scripture to answer questions that should have been left to philosophers.[54]


Averroes states his political philosophy in his commentary of Plato's Republic. He combines his ideas with Plato's and with Islamic tradition; he considers the ideal state to be one based on the Islamic law (shariah).[55] His interpretation of Plato's philosopher-king followed that of Al-Farabi, which equates the philosopher-king with the imam, caliph and lawgiver of the state.[56][55] Averroes' description of the characteristics of a philosopher-king are similar to those given by Al-Farabi; they include love of knowledge, good memory, love of learning, love of truth, dislike for sensual pleasures, dislike for amassing wealth, magnanimity, courage, steadfastness, eloquence and the ability to "light quickly on the middle term".[56] Averroes writes that if philosophers cannot rule—as was the case in the Almoravid and Almohad empires around his lifetime—philosophers must still try to influence the rulers towards implementing the ideal state.[55]

According to Averroes, there are two methods of teaching virtue to citizens; persuasion and coercion.[57] Persuasion is the more natural method consisting of rhetorical, dialectical and demonstrative methods; sometimes, however, coercion is necessary for those not amenable to persuasion, e.g. enemies of the state.[57] Therefore, he justifies war as a last resort, which he also supports using Quranic arguments.[57] Consequently, he argues that a ruler should have both wisdom and courage, which are needed for governance and defense of the state.[58]

Like Plato, Averroes calls for women to share with men in the administration of the state, including participating as soldiers, philosophers and rulers.[59] He regrets that contemporaneous Muslim societies limited the public role of women; he says this limitation is harmful to the state's well-being.[55]

Averroes also accepted Plato's ideas of the deterioration of the ideal state. He cites examples from Islamic history when the Rashidun caliphate—which in Sunni tradition represented the ideal state led by "rightly guided caliphs"—became a dynastic state under Muawiyah, founder of the Umayyad dynasty. He also says the Almoravid and the Almohad empires started as ideal, shariah-based states but then deteriorated into timocracy, oligarchy, democracy and tyranny.[55][60]

Natural philosophy


As did Avempace and Ibn Tufail, Averroes criticizes the Ptolemaic system using philosophical arguments and rejects the use of eccentrics and epicycles to explain the apparent motions of the moon, the sun and the planets. He argued that those objects move uniformly in a strictly circular motion around the earth, following Aristotelian principles.[61] He postulates that there are three type of planetary motions; those that can be seen with the naked eye, those that requires instruments to observe and those that can only be known by philosophical reasoning.[10] Averroes attempted to redefine astronomy as being based on physics rather than just mathematics as was commonly practiced by Arabic and Andalusian astronomers of his time; later in his life he declared that his attempts had failed.[61][11] Averroes argues that the occasional opaque colors of the moon are caused by variations in its thickness; the thicker parts receive more light from the Sun than the thinner parts.[62]


In physics, Averroes did not adopt the inductive method that was being developed by Al-Biruni in the Islamic world and is closer to today's physics.[41] Rather, he was—in the words of historian of science Ruth Glasner—a "exegetical" scientist who produced new theses about nature through discussions of previous texts, especially the writings of Aristotle.[63] because of this approach, he was often depicted as an unimaginative follower of Aristotle, but Glasner argues that Averroes' work introduced highly original theories of physics, especially his elaboration of Aristotle's minima naturalia and on motion as forma fluens, which were taken up in the West and are important to the overall development of physics.[64] Averroes also proposed a definition of force as "the rate at which work is done in changing the kinetic condition of a material body"—a definition close to the definition of power in today's physics.[65]


The Long Commentary on Aristotle's On the Soul, French Manuscript, third quarter of the 13th century.

Averroes expounds his thoughts on psychology in his three commentaries on Aristotle's On the Soul.[66] Averroes is interested in explaining the human intellect using philosophical methods and by interpreting Aristotle's ideas.[66] His position on the topic changed throughout his career as his thoughts developed.[66] In his short commentary, the first of the three works, Averroes follows Ibn Bajja's theory that something called the "material intellect" stores specific images that a person encounters.[67] These images serve as basis for the "unification" by the universal "agent intellect", which, once it happens, allow a person to gain universal knowledge about that concept.[68] In his middle commentary, Averroes moves towards the ideas of Al-Farabi and Avicenna, saying the agent intellect gives humans the power of universal understanding, which is the material intellect.[68] Once the person has sufficient empirical encounters with a certain concept, the power activates and gives the person universal knowledge[68] (see also logical induction).

In his last commentary—called the Long Commentary—he proposes another theory, which becomes known as the theory of "the unity of the intellect". In it, Averroes argues that there is only one material intellect, which is the same for all humans and is unmixed with human body.[69] To explain how different individuals can have different thoughts, he uses a concept he calls fikr—known as cogitatio in Latin—a process that happens in human brains and contains not universal knowledge but "active consideration of particular things" the person has encountered.[69] This theory attracted controversy when Averroes' works entered Christian Europe; in 1229 Thomas Aquinas wrote a detailed critique titled On the Unity of the Intellect against the Averroists.[66][70]


In Jewish tradition

Maimonides (d. 1204) was among early Jewish scholars who received Averroes' works enthusiastically, saying he "received lately everything Averroes had written on the works of Aristotle" and that Averroes "was extremely right".[71] Thirteenth-century Jewish writers, including Samuel ibn Tibbon in his work Opinion of the Philosophers, Judah ibn Solomon Cohen in his Search for Wisdom and Shem-Tov ibn Falaquera, relied heavily on Averroes' texts.[71] In 1232, Joseph Ben Abba Mari translated Averroes' commentaries on the Organon; this was the first Jewish translation of a complete work. In 1260 Moses Ben Tebbon published almost all of Averroes' commentaries and some of his works on medicine.[71] Jewish Averroism peaked in the fourteenth century;[72] Jewish writers of this time who translated or were influenced by Averroes include Kalonymus ben Kalonymus of Arles, France, Samuel ibn Judah of Marseilles, Todros Todrosi of Arles and Gersonides of Languedoc.[73]

In Latin tradition

Averroes' main influence on the Christian West was through his extensive commentaries on Aristotle.[74] After the fall of the Western Roman Empire, western Europe fell into a cultural decline that resulted in the loss of nearly all of the intellectual legacy of the Classical Greek scholars, including Aristotle.[75] Averroes' commentaries, which were translated into Latin and entered Western Europe in the thirteenth century, provided an expert account of Aristotle's legacy and made them available again.[76][72] The influence of his commentaries led to Averroes being referred to simply as "The Commentator" rather than by name in Latin Christian writings.[19]

Michael Scot (1175 – c. 1232) was the first Latin translator of Averroes who translated the long commentaries of Physics, Metaphysics, On the Soul and On the Heavens, as well as multiple middle and short commentaries, starting in 1217 in Paris and Toledo.[77] Following this, European authors such as Hermannus Alemannus, William de Luna and Armengaud of Montpellier translated Averroes' other works, sometimes with help from Jewish authors.[78] Soon after, Averroes' works propagated among Christian scholars in the scholastic tradition.[78] His writing attracted a strong circle of followers known as the Latin Averroists.[78] Paris and Padua were major centers of Latin Averroism, and its prominent thirteenth-century leaders included Siger of Brabant and Boethius of Dacia.[78]

Authorities of the Roman Catholic Church reacted against the spread of Averroism. In 1270, the Bishop of Paris Étienne Tempier issued a condemnation against 15 doctrines—many of which were Aristotelian or Averroist—that he said were in conflict with the doctrines of the church. In 1277, at the request of Pope John XXI, Tempier issued another condemnation, this time targeting 219 theses drawn from many sources, mainly the teachings of Aristotle and Averroes.[79]

Averroes received a mixed reception from other Catholic thinkers; Thomas Aquinas, a leading Catholic thinker of the thirteenth century, relied extensively on Averroes' interpretation of Aristotle but disagreed with him on many points.[80][19] For example, he wrote a detailed attack on Averroes' theory that all humans shares the same intellect.[81] He also opposed Averroes on the eternity of the universe and divine providence.[82]

The Catholic Church's condemnations of 1270 and 1277, and the detailed critique by Aquinas weakened the spread of Averroism in Latin Christendom,[83] though it maintained a following until the sixteenth century, when European thought began to diverge from Aristotelianism.[72] Leading Averroists in the following centuries included John of Jandun and Marsilius of Padua (fourteenth century), Gaetano da Thiene and Pietro Pomponazzi (fifteenth century), and Agostino Nifo and Marcantonio Zimara (sixteenth century).[84]

In Islamic tradition

Averroes had no major influence on Islamic philosophic thought until modern times;[85] Part of the reason was geography; Averroes lived in Spain, the extreme west of the Islamic civilization far from the centers of Islamic intellectual traditions.[44] Also, his philosophy may not have appealed to Islamic scholars of his time.[44] His focus on Aristotle's works was outdated in the twelfth-century Muslim world, which had already scrutinized Aristotle since the ninth century and by now was engaging deeply with newer schools of thought, especially that of Avicenna.[44] In the nineteenth century, Muslim thinkers begin to engage with the works Averroes again.[85] By this time, there was a cultural renaissance called Al-Nahda ("reawakening") in the Arabic-speaking world and the works of Averroes were seen as inspiration to modernize the Muslim intellectual tradition.[85]

In popular culture

Averroes, detail of the fresco The School of Athens by Raphael.

References to Averroes appear in the popular culture of both the Western and Muslim world. The poem The Divine Comedy by the Italian writer Dante Alighieri, completed in 1320, depicts Averroes, "who made the Great Commentary", along with other non-Christian Greek and Muslim thinkers, in Limbo around Saladin.[86][80] The prologue of The Canterbury Tales (1387) by Geoffrey Chaucer lists Averroes among other medical authorities known in Europe at the time.[86] Averroes is depicted in Raphael's 1501 fresco The School of Athens that decorates the Apostolic Palace in the Vatican, which features seminal figures of philosophy. In the painting, Averroes wears a green robe and a turban, and peers out from behind Pythagoras, who is shown writing a book.[87] Averroes is the hero of the 1997 Egyptian movie Destiny by Youssef Chahine. The movie was made partly in commemoration of the 800th anniversary of Averroes' death; it shows him as a man of wisdom in twelfth-century Cordoba.[87][88] He is also mentioned in The Name of the Rose, where William of Baskerville attributes to him the words "Only in the mathematical sciences are things known to us identified with those known absolutely."

The plant genus Averrhoa, the lunar crater ibn Rushd, and the asteroid 8318 Averroes were named after him.

See also


  1. ^ a b c d Arnaldez 1986, p. 909.
  2. ^ Rosenthal 2017.
  3. ^ Iskandar 2008, pp. 1115—1116.
  4. ^ Renan, Ernest (1882). Averroès et l'Averroïsme: Essai Historique (in French). Calmann-Lévy. p. 6. Retrieved June 21, 2017. Le nom latin d' Averroès s'est formé d'Ibn-Roschd par l'effet de la prononciation espagnole, où Ibn devient Aben ou Aven. 
  5. ^ Robert Irwin (2006). Dangerous Knowledge: Orientalism and its Discontents. The Overlook Press. ISBN 978-1-58567-835-8.
  6. ^ Renan, Ernest (1882). Averroès et l'Averroïsme: Essai Historique (in French). Calmann-Lévy. p. 6. Retrieved June 21, 2017. Peu de noms ont subi des transcriptions aussi variées : Ibin-Rosdin, Filius Rosadis, Ibn Rusid, Ben-Raxid, Ibn Ruschod, Ben-Resched, Aben Rassad, Aben-Rois, Aben-Rasd. Aben-Rust, Avenrosd, Avenryz, Adveroys, Benroist, Avenroyth, Averroysta, etc. 
  7. ^ a b c d e Hillier, Biography.
  8. ^ a b c d Wohlman 2009, p. 16.
  9. ^ a b c Dutton 1994, p. 190.
  10. ^ a b c d e Iskandar 2008, p. 1116.
  11. ^ a b c d e f g h i j k l m n o p q r s t u v w x y z aa Arnaldez 1986, p. 910.
  12. ^ Fakhry 2001, p. 1.
  13. ^ a b c d e f g h i j k l Fakhry 2001, p. 2.
  14. ^ a b c Dutton 1994, p. 196.
  15. ^ a b c d e Fakhry 2001, p. 3.
  16. ^ a b c d e Taylor 2005, p. 181.
  17. ^ Ahmad, Jamil (September 1994), "Averroes", Monthly Renaissance, 4 (9), retrieved 2008-10-14 
  18. ^ Adamson 2016, pp. 180–181.
  19. ^ a b c d e f Adamson 2016, p. 180.
  20. ^ McGinnis & Reisman 2007, p. 295.
  21. ^ Arnaldez 1986, pp. 911–912.
  22. ^ Arnaldez 1986, pp. 913–914.
  23. ^ Arnaldez 1986, pp. 914.
  24. ^ a b Arnaldez 1986, pp. 915.
  25. ^ a b c Fakhry 2001, p. 124.
  26. ^ a b Fakhry 2001, p. xvi.
  27. ^ Dutton 1994, p. 188.
  28. ^ Fakhry 2001, p. 115.
  29. ^ Fakhry 2001, p. 5.
  30. ^ Leaman 2002, p. 27.
  31. ^ Fakhry 2001, p. 6.
  32. ^ Fakhry 2001, pp. 6–7.
  33. ^ a b Fakhry 2001, p. 7.
  34. ^ Fakhry 2001, pp. 8–9.
  35. ^ Fakhry 2001, p. 9.
  36. ^ a b c d Hillier, Philosophy and Religion.
  37. ^ Hillier, paragraph 2.
  38. ^ Leaman 2002, p. 55.
  39. ^ a b c Guessoum 2011, p. xx.
  40. ^ a b Adamson 2016, p. 184.
  41. ^ a b c Guessoum 2011, p. xxii.
  42. ^ Adamson 2016, p. 182.
  43. ^ a b Adamson 2016, p. 183.
  44. ^ a b c d Adamson 2016, p. 181.
  45. ^ a b c d e f g h Hillier, Existence and Attributes of God.
  46. ^ a b Fakhry 2001, p. 74.
  47. ^ a b Fakhry 2001, p. 77.
  48. ^ Fakhry 2001, pp. 77–78.
  49. ^ Fakhry 2001, p. 79.
  50. ^ Fakhry 2001, p. 14.
  51. ^ a b c Fakhry 2001, p. 18.
  52. ^ a b Fakhry 2001, p. 19.
  53. ^ Hillier, Origin of the World.
  54. ^ Fakhry 2001, pp. 19–20.
  55. ^ a b c d e Rosenthal 2017, Contents And Significance Of Works.
  56. ^ a b Fakhry 2001, p. 111.
  57. ^ a b c Fakhry 2001, p. 106.
  58. ^ Fakhry 2001, p. 107.
  59. ^ Fakhry 2001, p. 110.
  60. ^ Fakhry 2001, p. 112–114.
  61. ^ a b Forcada 2007, pp. 554—555.
  62. ^ Ariew, Roger (2011). Descartes Among the Scholastics. BRILL. p. 193.
  63. ^ Glasner 2009, p. 4.
  64. ^ Glasner 2009, pp. 1—2.
  65. ^ Agutter, Paul S.; Wheatley, Denys N. (2008). Thinking about Life: The history and philosophy of biology and other sciences. Springer Science & Business Media. p. 45. ISBN 978-1-4020-8866-7. 
  66. ^ a b c d Adamson 2016, p. 188.
  67. ^ Adamson 2016, p. 189–190.
  68. ^ a b c Adamson 2016, p. 190.
  69. ^ a b Adamson 2016, p. 191.
  70. ^ Hasse 2014, Averroes' Unicity Thesis.
  71. ^ a b c Fakhry 2001, p. 132.
  72. ^ a b c Fakhry 2001, p. 133.
  73. ^ Fakhry 2001, pp. 132–133.
  74. ^ Fakhry 2001, p. 131.
  75. ^ Fakhry 2001, p. 129.
  76. ^ Adamson 2016, pp. 181–182.
  77. ^ Fakhry 2001, p. 133–134.
  78. ^ a b c d Fakhry 2001, p. 134.
  79. ^ Fakhry 2001, p. 134–135.
  80. ^ a b Fakhry 2001, p. 138.
  81. ^ Adamson 2016, p. 192.
  82. ^ Fakhry 2001, p. 140.
  83. ^ Fakhry 2001, p. 135.
  84. ^ Fakhry 2001, p. 137–138.
  85. ^ a b c Leaman 2002, p. 28.
  86. ^ a b Sonneborn 2006, p. 94.
  87. ^ a b Sonneborn 2006, p. 95.
  88. ^ Guessoum 2011, p. xiv.

Works cited

Further reading

  • Baffioni, Carmela (2004), Averroes and the Aristotelian Heritage, Guida Editori, ISBN 88-7188-862-6 
  • Campanini, Massimo (2007), Averroè, Bologna: Il Mulino 
  • Kogan, Barry S. (1985), Averroes and the Metaphysics of Causation, SUNY Press, ISBN 0-88706-063-3 
  • Kupka, Thomas (2011), "Averroes als Rechtsgelehrter" [Averroes as a Legal Scholar] (PDF), Rechtsgeschichte (18): 214–216 
  • Leaman, Olivier (1998), Averroes and his philosophy, Routledge, ISBN 0-7007-0675-5 
  • Sorabji, Richard (1988), Matter, Space and Motion, Duckworth 
  • Schmidt-Biggemann, Wilhelm (2010), "Sketch of a Cosmic Theory of the Soul from Aristotle to Averroes", in Siegfried Zielinski and Eckhard Fürlus in cooperation with Daniel Irrgang and Franziska Latell, Variantology 4. On Deep Time Relations of Arts, Sciences and Technologies In the Arabic-Islamic World and Beyond, Cologne: Verlag der Buchhandlung Walther König, pp. 19–42, archived from the original on 2011-07-16 

External links

Works of Averroes

  • DARE, the Digital Averroes Research Environment, an ongoing effort to collect digital images of all Averroes manuscripts and full texts of all three language-traditions.
  • Averroes, Islamic Philosophy Online (links to works by and about Averroes in several languages)
  • The Philosophy and Theology of Averroes: Tractata translated from the Arabic, trans. Mohammad Jamil-ur-Rehman, 1921
  • The Incoherence of the Incoherence translation by Simon van den Bergh. [N. B. : This also contains a translation of most of the tahafut as the refutations are mostly commentary of al-Ghazali statements that were quoted verbatim.] There is also an Italian translation by Massimo Campanini, Averroè, L'incoerenza dell'incoerenza dei filosofi, Turin, Utet, 1997.
  • SIEPM Virtual Library, including scanned copies (PDF) of the Editio Juntina of Averroes' works in Latin (Venice 1550–1562)

Information about Averroes

  • Forcada, Miquel (2007). "Ibn Rushd: Abū al‐Walīd Muḥammad ibn Aḥmad ibn Muḥammad ibn Rushd al‐Ḥafīd". In Thomas Hockey; et al. The Biographical Encyclopedia of Astronomers. New York: Springer. pp. 564–5. ISBN 978-0-387-31022-0.  (PDF version)
  • Iskandar, Albert Z. (2008) [1970-80]. "Ibn Rushd, Abū'L-Walīd Muḥammad Ibn Ahmad Ibn Muḥammad". Complete Dictionary of Scientific Biography. 
  • Fouad Ben Ahmed. "Ibn Rušd: Knowledge, pleasures and analogy", in: Philosophia: E-Journal of Philosophy and Culture, 4/2013. ISSN 1314-5606
  • Averroes on In Our Time at the BBC
  • Wikisource Chisholm, Hugh, ed. (1911). "Averroes". Encyclopædia Britannica (11th ed.). Cambridge University Press. 
  • Wikisource-logo.svg Herbermann, Charles, ed. (1913). "Averroes". Catholic Encyclopedia. New York: Robert Appleton Company. 
  • DARE Bibliography, a comprehensive overview of the extant bibliography
  • Averroes Database, including a full bibliography of his works
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