This article offers the first edition and translation of two heretofore unpublished pharmacological treatises by Abū Bakr al-Rāzī, namely Fī ittikhādh māʾ al-jubn and Fī manāfiʿ māʾ al-jubn, which seem to have formed part of a lost volume on dairy products. As it demonstrates, al-Rāzī’s examination of whey is connected to his philosophical interest in the complex nature of simple substances such as milk. The article also highlights how these two treatises built on the Greek pharmacological tradition by incorporating (...) ingredients from Persia and India. (shrink)

Selected aphorisms -- Enumeration of the sciences, chapter 5 -- Book of religion -- The harmonization of the two opinions of the two sages: Plato the Divine and Aristotle.

Deliverance from error and attachment to the Lord God of Might and Majesty. [al-Munḳidh min al-ḍalāl]--The beginning of guidance. [Badāyat al-hidāyah].

De scientiis: translation by Gerard of Cremona of (romanized: Ibsā al-ʻulūm)--De intellectu et intellecto: anonymous translation of (romanized: Risālah fi al-ʻaql).

"Al-Farabi of Baghdad (c. 870-950) is the first major representative of the medieval Arabic Aristotelianism which came to influence the Christian West so profoundly. In the Islamic world his writings on logic set the pattern for the future and virtually created Islamic philosophy. He is also important as a witness to the study of Aristotle in late antiquity, demonstrating a knowledge of Galen and the exegetical tradition of Porphyry. This translation is based on a fresh study of the Arabic manuscripts. (...) An introduction and notes make this intriguing document accessible to all for whom it contains important matter.Classicists, historians of philosophy and logic, medievalists, Arabists, students of Islamic thought."--. (shrink)

As there are several famous al-Rāzī relevant to philosophy, I need first to specify that this remarkable book deals with Abū Bakr Muhammad ibn Zakariyyā' al-Rāzī, also known as "Galen of the Arabs," and in Latin as well as in the Canterbury Tales as "al-Rhazes." He proudly presented himself as both a philosopher and a physician taking Galen as his model. Just as in Hellenistic times Galen was highly valued as a physician but demeaned as a philosopher, so (...) often was al-Rāzī. This book reinstates al-Rāzī as an interesting philosopher, who claims to be a disciple of Galen and Plato but clearly understands that discipleship implies following Galen's own example of avoiding uncritical... (shrink)

The Buyide wezir Abū I-Faḍl Ibn al-‘Amīd became famous as a poet and expert in epistolary literature, but also as a scholar and scientist. His letters, published here together with translation, commentary and complete glossary, inform us on questions of meteorology, physics, mechanics and psychology.

Ethics plays an essential role in the philosophical framework of Abū Bakr al-Rāzī. Although most of his philosophical works have become extinct, two surviving works serve as primary sources for understanding his ethical theory. Although sharing certain foundational principles, these two works diverge in terms of ethical standards and exhibit distinct logical approaches to ethics, a facet that has largely remained unexplored within contemporary scholarly discourse. I aim to extract and reconstruct both of his ethical decision-making systems by shedding (...) light on the place of ethics in his philosophy, explaining the interconnection of the two ethical frameworks, reconstructing both of these ethical systems, and finally presenting them in patterns. (shrink)

This paper introduces two newly discovered epistles by the celebrated physician and philosopher Abū Bakr Muḥammad ibn Zakariyyāʾ al-Rāzī. The first epistle addresses the question of why and how clothing can be used both to stay warm and to stay cool, drawing on the Aristotelian tradition of problem literature. The second epistle arises out of a court polemic and treats the question of whether one should consume mulberries after watermelons. This study offers analysis, editions, and translations of these previously (...) unknown epistles, situating them within their broader literary and cultural contexts. (shrink)

This paper initiates a dialogue between classical Islamic philosophy and late modern European thought, by focusing on two peripheral, ‘heretical’ figures within these traditions: Abū Bakr Muḥammad ibn Zakariyāʾ al-Rāzī and Friedrich Nietzsche. What affiliates these thinkers across the cultural and historical chasm that separates them is their mutual fascination with, and profound indebtedness to, ancient Greek and Hellenistic philosophy. Given the specific themes, concerns and doctrines that they appropriate from this common source, I argue that al-Rāzī and Nietzsche (...) should be read as Epicureans and seen in relation to their predecessor as part of the subterranean tradition of philosophical naturalism. However, while each figure appropriates the philosophy of Epicurus, they ultimately transform it in important ways: al-Rāzī offers us a qualified “Platonic” Epicureanism, while Nietzsche forges a radicalized “Dionysian” Epicureanism. The point of such a comparative examination is twofold. First, analyzing the divergent paths of these “wayward” Epicureans sheds new light on the historical trajectory of naturalism as a philosophical stance (as well as its current prospects and limitations). Second, by initiating a dialogue between the classical Islamic and modern European philosophical traditions, we can better understand the antagonisms and shared concerns between these two horizons, as well as the ambiguities and self-questioning that occur within them. (shrink)

Abū Bakr Muḥammad bin Zakariyya’ al-Rāzī (865–925) is generally known as a freethinker who argued against prophecy and revealed religion based on arguments from fairness of God and rationality. Recently some scholars argued that Razi was not as radical as the general interpretation takes him to be. Both the freethinker and conservative interpretations seem well supported based on difference bodies of evidence. However, the evidence is based on secondhand reports. In this paper I argue there is an (...) interpretation of prophecy which is supported by primary sources and can reconcile these putatively contradictory positions. Under my interpretation Razi allows for prophecy based on the rationality of moral deference in certain circumstances. In this picture one function of prophets is to act as moral experts for deference. This interpretation provides a synthesis of the freethinker and conservative views. Razi is conservative in having room for prophecy because of his dualist nature of humanity, and Razi is still a freethinker who values reason above all, because moral expertise requires excellent command of reason. (shrink)

Rāzī, Abū Bakr Muḥammad ibn Zakarīyā,865?-925?; criticism and interpretation.

Nuestro propósito aquí es el de dar cuenta, de un modo sumario, de la figura de Abu Bakr Zakariyya al-Razi (el Rhazes de los latinos) y los posibles orígenes de su pensamiento, así como presentar la originalidad de su pensamiento filosófico en el contexto de su tiempo y su cultura.

This article argues that a fragment from a lost treatise by Abū Bakr al-Rāzī (d. 925) is preserved in the Book on Morphology Kitāb al-Taṣrīf) by Ps-Ǧābir ibn Ḥayyān. Paul Kraus reached the conclusion that the collection to which this book belongs was written between the end of the ninth and the beginning of the tenth century AD. This fragment represents the first attempt – to our knowledge – to analyze the logical structure of sign-based inference in Arabic, which (...) is known as istidlāl bi-al-šāhid ʿalā al-ġāʾib among theologians and philosophers. The author distinguishes between sign-inferences based on homogeneity (al-muǧānasa), course of habit (maǧrā al-ʿāda) and traces (āṯār). After providing a translation of the fragment, the first part of this paper argues that its author is Abū Bakr al-Rāzī. My argument is based on a comparison between this text and a passage from the Doubts About Galen, which is also by Abū Bakr al-Rāzī. I hypothesize that at least two other fragments from the same work or from different works by Abū Bakr al-Rāzī are preserved in the corpus attributed to Ps-Ǧābir. The second part of the paper aims to reconstruct Abū Bakr al-Rāzī’s theory of sign-inference. In so doing, I show the historical influence that Hellenistic debates on sign-inference might have had on al-Rāzī, and I situate al-Rāzī’s theory in the context of the prominent use that the theologians of the kalām made of the istidlāl bi-al-šāhid ʿalā al-ġāʾib. To offer a more comprehensive reconstruction of al-Rāzī’s theory of sign-inference, this article compares the critical approach presented in the newly identified fragment with the epistemological framework outlined in the Doubts About Galen. Finally, this article shows that Abū Bakr al-Rāzī’s theory of sign-inference had a strong influence on al-Fārābī’s logical developments especially in his Epitome of the Prior Analytics, even if he does not acknowledge this intellectual debt. (shrink)

The Arabic philosophical fable _Hayy Ibn Yaqzan _is a classic of medieval Islamic philosophy. Ibn Tufayl, the Andalusian philosopher, tells of a child raised by a doe on an equatorial island who grows up to discover the truth about the world and his own place in it, unaided—but also unimpeded—by society, language, or tradition. Hayy’s discoveries about God, nature, and man challenge the values of the culture in which the tale was written as well as those of every contemporary society. (...) Goodman’s commentary places _Hayy Ibn Yaqzan _in its historical and philosophical context. The volume features a new preface and index, and an updated bibliography. “One of the most remarkable books of the Middle Ages.”—_Times Literary Supplement_ “An enchanting and puzzling story.... The book transcends all historical and cultural environments to settle upon the questions of human life that perpetually intrigue men.”—_Middle East__ Journal_ “Goodman has done a service to the modern English reader by providing a readable translation of a philosophically significant allegory.”—_Philosophy East and West_ “Add[s] bright new pieces to an Islamic mosaic whose general shape is already known.”—_American Historical Review_. (shrink)

Two Andalusian Philosophers is a short but comprehensive introduction to the central concerns of Islamic philosophy and its relationship with sharia law. The Story of Hayy ibn Yaqzan by Ibn Tufayl and The Definitive Statement by Averroes represent the last, great flourish of Islamic philosophy in twelfth century Andalusia. The influence of Averroes upon Latin scholastic philosophy is well known (although the content of his writings may be rather less familiar to a modern readership). Ibn Tufayls reputation rests primarily upon (...) Hayy ibn Yaqzan, which is among the most accessible of Islamic mystical writings. Widely known in English translation during the early eighteenth century, he was an important influence upon the composition of Robinson Crusoe. (shrink)

Muhammad al-Shahrastani, the famous Muslim theologian of the 12th century and author of the Book of Religious and Philosophical Sects, was greatly influenced by Ismaili teachings. In this work al-Shahrastani refutes the metaphysics of Ibn Sina (Avicenna) from an Ismaili point of view.