Abul Aina was a philologist, but also a great joker, anecdote-teller, and poet. His memory was equal to his eloquence, and, being quick-witted, he was never in want of a repartee when the occasion required it; indeed, he ranked among the most brilliant wits of the age. To a vizier, who said that everything current about the liberality of the Barmekides was only so much exaggeration and invention of leaf-scribblers, he replied: 'Of you, O vizier, the leaf-scribblers will certainly report nothing and invent nothing.' There are many other anecdotes and stories told about him. Being asked how long he would continue to praise some and satirize others, he replied: 'As long as the virtuous do good and the wicked do evil, but God forbid that I should be as the scorpion which stingeth equally the prophet and the infidel.' He had a most wonderful memory, which he applied, however, not to the preservation of interpretations and their vouchers, but to that of anecdotes, drolleries, and witty sayings, wherefore his name has been perpetuated as that of a joker. He died A.D. 896.
Mention must also be made of Abdullah bin Muslim bin Kutaiba, who was a philologist and grammarian of eminent talent, and noted for the correctness of his information. He was the author of many works, such as 'The Book of Facts,' 'The Writer's Guide,' 'Notices on the Poets,' and 'A Treatise on Horses,' and others, all of which were more or less celebrated in their time. He was born A.D. 828, and died, some say, in A.D. 884, others in A.D. 908.
Ibn Duraid, whose many other names are given by Ibn Khallikan, is described by that author as 'the most accomplished scholar, the ablest philologer, and the first poet of the age.' Masudi and other men of learning also speak of him in the highest terms. He composed several works on natural history, and produced also a complete Dictionary of this kind, after the model of the books 'Al-A'in' and 'Al-Jim,' the two letters of the alphabet with which Khalil, the grammarian, and Abu Amr as Shaibani respectively began their works. Ibn Duraid died at Baghdad A.D. 933. The celebrated Motazelite divine Abu Haslim Abd-as Salam Al-Jubbai died the same day, and this caused the people to say that 'To-day philology and dogmatic theology have ceased to exist.'
In the East, by philosophy not only logic and metaphysics are meant, but also all ethical, political, mathematical, and medical sciences. Indeed, it may be said that nearly all learned men were in those days called philosophers, a term which included mathematicians, astronomers, physicians, encyclopædists and others.
From the mass of Arab authors all laying claim to the title of philosopher, it is perhaps an invidious task to select a few only, and even those selected by one person might be rejected by another. But public opinion will probably agree in naming three persons as having claim to the highest rank in Arab learning. They are Al-Kindi, Al-Farabi, and Ali-ibn Sina, commonly called Avicenna. Ali-bin Ridhwan, Al-Ghazali, Ibn Bajah (Avempace), and Ibn Rashid (Averroes) have also their claims to be considered, while Thalab bin Korra, Kosta bin Luka, Al-Tavhidi, and Al-Majridi were also all eminent men. A few details will be given about the first seven of the names just mentioned.
Yakub-bin Ishak Al-Kindi, the philosopher of the Arabs, known in Europe by the corrupted name of Alchendius, possessed an encyclopædic mind, and being himself a living encyclopædia, he composed one of all the sciences. He divided philosophy into three branches, the mathematical, the physical, and the ethical. He declared the nullity of alchemy, which Ibn Sina had again brought to honourable notice, till the physician Abdul Latif declaimed against it. But Al-Kindi was not sufficiently advanced to write against astrology, which is still in full force all over the East even in our own times. Only one of his works has as yet been published in Europe, and that treats on the composition of medicines, though we possess the titles of not less than two hundred and thirty-four works composed by him on a variety of subjects. He died A.D. 861.
Abu Nasr Al-Farabi (Alfarabius), called by the Arabs a second Aristotle, is generally considered to be the second Arab philosopher; Avicenna, who always quotes him in his works, the third; the first place being assigned to Al-Kindi. Al-Farabi studied Arabic (he was a Turk by birth) and philosophy in Baghdad, where he attended the lectures of Abu Bishr Matta bin Yunus, who possessed, and also imparted to his pupils, the gift of expressing the deepest meanings in the easiest words. From Baghdad he went to Harran, where Yuhanna bin Khailan, the Christian philosopher, was teaching logic, and after his return he made all the works of Aristotle his special study. It is related that the following note was found inscribed in Al-Farabi's handwriting on a copy of Aristotle's treatise on the soul: 'I have read over this book two hundred times.' He also said that he had read over Aristotle's 'Physics' forty times, and felt that he ought to read it over again. Abul Kasim Said, of Cordova, says in his 'Classes of Philosophers' that 'Al-Farabi led all the professors of Islam to the right understanding of logic by unveiling and explaining its secrets, as well as by considering all those points which Al-Kindi had neglected, and by teaching the application of analogy to all occurring cases.' In his enumeration and limitation of the sciences, Al-Farabi embraced the whole system of knowledge as it then existed. He went to Egypt, and afterwards to Damascus, where he died in A.D. 950. During his residence at Damascus he was mostly to be found near the borders of some rivulet, or in a shady garden; there he composed his works and received the visits of his pupils. He was extremely abstemious, and entirely indifferent to wealth and poverty. The list of his works on philosophical and scientific subjects amount to sixty-one. Mr. Munk's 'Mélanges de Philosophie Juive et Arabe' (Paris, 1859) contains good articles on Al-Farabi and Al-Kindi.
Ibn Sina (Avicenna) was a great philosopher and physician. At the age of ten years he had completed the study of the Koran in Bukhara, where afterwards a certain Natili became his tutor, with whom he first studied the 'Eisagoge' of Porphyry, and afterwards Euclid, and lastly the 'Almagest' of Ptolemy. Natili then departed, and an ardent desire to study medicine having taken possession of Ibn Sina, he commenced to read medical books, which not being so difficult to understand as mathematics and metaphysics, he made such rapid progress in them that he soon became an excellent physician, and cured his patients by treating them with well-approved remedies. He began also to study jurisprudence before he was thirteen. At the age of eighteen he entered the service of a prince of the Beni Saman dynasty, Nuh bin Mansur, at Bukhara, a paralytic, who entertained many physicians at his court, and Ibn Sina joined their number. There he composed his 'Collection,' in which he treated of all the sciences except mathematics, and there also he wrote his book of 'The Acquirer and the Acquired.' He then left Bukhara, and lived in various towns of Khurasan, but never went further west, spending his whole life in the countries beyond the Oxus, in Khwarizm and in Persia, although he wrote in Arabic. It would be superfluous to follow all his changes of fortune, but it may be mentioned that when he was the first physician and vizier of Mezd-ud-daulah, a sultan of the Bowide dynasty, he was twice deposed and put in irons. He also appears to have acted treacherously towards Ala-ud-daulah, a prince of Ispahan, who was his benefactor. He was four years in prison, but at last succeeded in deceiving his guardians, and escaped. His dangerous travels, and the depression of mind inseparable from reverses of fortune, however, never interrupted his scientific pursuits. His taste for study and his activity were such that, as he himself informs us, not a single day passed in which he had not written fifty leaflets. The list of manuscripts left by him, and scattered in various libraries of Europe, is considerable, and though many of his works have been lost, some are still in existence. The fatigues of his long journeys, and the excesses of all kinds in which he indulged, abridged the life of this celebrated scholar, who died in A.D. 1037, at the age of fifty-six, at Hamadan, where the following epitaph adorns his tomb: 'The great philosopher, the great physician, Ibn Sina, is dead. His books on philosophy have not taught him the art of living well, nor his books on medicine the art of living long.'
A brief notice must be given of the celebrated physician and philosopher, Ali bin Ridhwan, who died A.D. 1067. He was such a prodigy of precocious learning that he began to lecture on medicine and philosophy at Cairo from his fourteenth year. He afterwards also taught astronomy. At the age of thirty-two he had attained a great reputation as a physician, and was a rich man at sixty. He left more than one hundred books which he had composed, and he himself says: 'I made abridgments of the chief philosophical works of the ancients, and left in this manner five books on philology; ten on law; the medical works of Hippocrates and Galen; the book of plants of Dioskorides; the books of Rufus, Paulus, Hawi, and Razi; four books on agriculture and drugs; four books for instruction in the 'Almagest' of Ptolemy, and an introduction to the study of it, and to the square of Ptolemy; as also to the works of Plato, Alexander, Themistios, and Al-Farabi. I purchased all these books, no matter what they cost, and preserved them in chests, although it would have been more profitable to have sold them again rather than have kept them.' Ibn Batlan, a clever physician, was a contemporary of Ibn Ridhwan, and travelled from Baghdad to Egypt only for the purpose of making his acquaintance, but the result does not appear to have been satisfactory to either party. He died A.D. 1063, leaving a number of works on medical and other subjects.
Abu Hamid Al-Ghazali was born A.D. 1058. He was considered chiefly as a lawyer and a mystic, but here he will be noticed chiefly as a philosopher and the author of 'The Ruin of Philosophers,' noticed at length by Haji Khalfa in his 'Encyclopædical Dictionary,' under No. 3764. But Ghazali's most celebrated work is 'The Resuscitation of Religious Sciences,' which is so permeated by the genius of Islam that, according to the general opinion of scholars, the Muhammadan religion, if it were to perish, might again be restored from this work alone. Orthodox fanatics, nevertheless, attacked his works as being schismatic, and they were even burnt in the Mugrib. He was born at Tus (the modern Mashad), in Khurasan, and passed his life partly there, also at Naisapur, Baghdad, Damascus, Egypt, and finally returned to Tus, where he died A.D. 1111. His works are very numerous, and all of them are instructive.