Glen Cooper

RésuméCet article examine une brève présentation catéchétique de la doctrine médicale galénique des jours critiques composée par le traducteur et penseur duixesiècle Qusṭā ibn Lūqā (m. 912/3) et que l'on a trouvée dans un manuscrit iranien. Tout d'abord, on démontre que cette œuvre a été composée à partir du traité de Galien sur les jours critiques. Ensuite, on la discute section par section, sous forme de commentaire, pour élucider les doctrines médicales proposées par Qusṭā. Enfin, l'œuvre est comparée avec une tentative antérieure, celle d'al-Kindī (m.c. 870), de décrire les jours critiques d'une façon mathématique. On discute les diverses doctrines présentes à l'arrière-plan du traité, comme les diverses approches de la méthode scientifique. L'article se conclut en mettant en contraste la méthode scientifique mathématique eta priorid'al-Kindī avec la méthode empirique eta posterioride Galien et Qusṭā, et il fait des suggestions concernant la chronologie des occurrences de ces doctrines et de ces textes en langue arabe. Une transcription du texte arabe est donnée en appendice.

The author examines the question of Galen's affinity with astrology, in view of Galen's extended astrological discussion in the De diebus decretoriis . The critical passages from Galen are examined, and shown to be superficial in understanding. The author performs a lexical sounding of Galen's corpus, using key terms with astrological valences drawn from the Critical Days, and assesses their absence in Galen's other works. He compares Galen's astrology with the astrology of Ptolemy's Tetrabiblos, and evaluates their respective strategies of scientific reasoning. Three types of inference are introduced and applied to Galen's astrology. Finally, he concludes that the empirical side of Galen's science does not depend upon astrological methods or concepts, but that these were introduced for their rhetorical effect in presenting his new medical methodology. It is suggested that continued attention to Galen's astrology has obscured the truly important empirical scientific method that Galen developed

This volume presents the first edition of the Arabic translation, by Hunayn ibn Ishaq, of Galen's Critical Days (De diebus decretoriis), together with the first translation of the text into a modern language. The substantial introduction contextualizes the treatise within the Greek and Arabic traditions. Galen's Critical Days was a founding text of astrological medicine. In febrile illnesses, the critical days are the days on which an especially severe pattern of symptoms, a crisis, was likely to occur. The crisis was thought to expel the disease-producing substances from the body. If its precise timing were known, the physician could prepare the patient so that the crisis would be most beneficial. After identifying the critical days based on empirical data and showing how to use them in therapy, Galen explains the critical days via the moon's influence. In the historical introduction Glen Cooper discusses the translation of the Critical Days in Arabic, and adumbrates its possible significance in the intellectual debates and political rivalries among the 9th-century Baghdad elite. It is argued that Galen originally composed the Critical Days both to confound the Skeptics of his own day and to refute a purely mathematical, rationalist approach to science. These features made the text useful in the rivalries between Baghdad scholars. Al-Kindi (d.c. 866) famously propounded a mathematical approach to science akin to the latter. The scholar-bureaucrat responsible for funding this translation, Muhammad ibn Musa (d. 873), al-Kindi's nemesis, may have found the treatise useful in refuting that approach. The commentary and notes to the facing page translation address issues of translation, as well as important concepts.

The Aldine edition of Galen’s works, prepared by humanists anxious to replace the medieval Latin translations with a purely Greek text, certainly represents an advance in scholarship. However, widespread anti-Arabic prejudices of the time precluded most humanists, including the Aldine editors, from perceiving anything of value in the Latin Galenic textual tradition, which was characterized as representing a Galen that had passed through the corrupting influence of Arabic. This paper considers the cost to the medical tradition of ignoring Arabic in the Aldine edition of 1525, and thereafter. Several examples of passages from the Arabo-Latin Galen are compared with the Aldine, and their differences are considered and evaluated with regard to their impact on medical knowledge. The conclusion is drawn that, although there were some real corruptions in the Arabo-Latin tradition, in the main it contained useful variant readings, which might have been used to the profit of Greek philology, as well as to the advancement of Galenic scholarship.