Science in the Early Islamic Period

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ARAB SCHOLARSHIP


11th century Arab astrolabe

During the 8th, 9th and 10th century when Europe was is in the Dark Ages, the Arab world was incorporating elements of the great civilizations around them—India, China and Byzantium— and producing a great culture of their own.

Among other things, the Arabs were very interested in Greek science and philosophy. They were reading Plato and Aristotle when they had long been forgotten in the West. The study of the Greeks is credited with incorporating reason into Islamic thought and causing tensions between those who favored reason and those that followed a strict interpretation of the religious scriptures.

In the early Middle Ages, the Muslim kingdoms were the intellectual centers of the world. The Al-Azhar University in Cairo had 12,000 students and the library in Cordoba contained 400,000 manuscripts. Mosques and madrasahs were the primary centers of learning, but because of what was studied there was of a religious nature, scientific and philosophical studies were supported primarily by the courts of rulers and wealthy people.

Science and religion coexisted and supported one another. Astronomers helped fix prayer times and determined the dates and times of Islamic holidays. It was believed astronomy and mathematics provided an avenue to God. Philosophy offered new insights into Islam but also challenged some of its premises.

Websites on Islamic History: History of Islam: An encyclopedia of Islamic history historyofislam.com ; Oxford Encyclopedia of the Islamic World oxfordislamicstudies.com ; Sacred Footsetps sacredfootsteps.com ; Islamic History Resources uga.edu/islam/history ; Internet Islamic History Sourcebook fordham.edu/halsall/islam/islamsbook ; Islamic History friesian.com/islam ; Muslim Heritage muslimheritage.com ; Chronological history of Islam barkati.net

Golden Age of Arab Science and Mathematics

The Arabs were the most scientifically advanced civilization between the seventh and eleventh century. Muslim scholars made great advances in algebra, geometry, optics, cosmology, alchemy (the beginning of modern chemistry), natural history, astronomy, medicine, geography, technology and philosophy but left the world of physics to Allah and Aristotle. Arabic was the language of science from the Mediterranean to the Indian Ocean.


Al-Jazari robots from the 13th century

One historian wrote that Muslim scholars were developing algebra and measuring latitude while "Charlemagne and his lords were reportedly dabbling in the art of writing their names." Lipman wrote, "Muslim scholars accepted the holy book's challenge, exploring the works of their Greek and Babylonian predecessors and synthesizing them with their own works into a highly sophisticated body of knowledge."

Abu Ali al-Hasan Ibn al-Haytham, born in Basra in present-day Iraq in 965, is credited with developing the notion of scientific method. Rather than trying to figure out truth and reality by pondering and analyzing things, as Plato and Aristotle had done, Ibn al-Haytham emphasized experimentation. Ironically, teetotaling Arab Muslims developed the technology of distillation—a way of making the alcohol content in beverages higher—and introduced it to Europe in Middle Ages.

Arabs adopted the Hindu numerical and base ten system into Arabic numerals and invented algebra and trigonometry in A.D. 8th century. Algebra, derived from the Arabic word “al-jabr, algorithms and logarithms were developed by Abu Muhammad ibn Musa al-Khwarizmi (800-47), a mathematician from Khiva, Uzbekistan. Algorithm (the mathematical process behind addition and multiplication) is a corruption of his name. He was also a pioneer in using Hindu (Arabic) numerals.

Science and Mathematics in the Early Islamic Period

Arthur Goldschmidt, Jr. Wrote in “A Concise History of the Middle East”: “I alluded to mathematics, science, and medicine in discussing Islamic philosophy, for early Muslims did not split up the areas of human knowledge as much as we do now. We tend to appreciate Muslim thinkers, if at all, for preserving the body of classical learning until the West could relearn it during the Renaissance. Our debt is really much greater. Muslim mathematicians made important advances in algebra, plane and spherical trigonometry, and the geometry of planes, spheres, cones, and cylinders. Our "Arabic numerals" were probably a Hindu invention, but Arabs transmitted them to Europe. Muslims used decimal fractions at least two centuries before Westerners knew about them. They applied their mathematical knowledge to business accounting, land surveying, astronomical calculations, and mechanical devices. [Source: Arthur Goldschmidt, Jr., “A Concise History of the Middle East,” Chapter. 8: Islamic Civilization, 1979, Internet Islamic History Sourcebook, sourcebooks.fordham.edu /~]


15th century anatomy of a horse

“In medicine, the Muslims built on the work of the ancient Greeks, but they were especially indebted to Nestorian Christians. One of these was Hunayn ibn Ishaq (d. 873), who translated many Greek and Aramaic texts into Arabic but whose greatest work was in the science of optics. I have already mentioned the continuing use of Ibn Sina's work as a medical textbook in Europe. To give another example of the influence of Middle Eastern medicine, the illustrations in Vesalius's pioneering work on anatomy show many parts of the body labeled with Arabic and Hebrew terms. Physicians in early Islamic society studied both botany and chemistry in order to discover curative drugs and also antidotes to various poisons. /~\

“Rational and nonrational methods of observation were often closely tied together. For example, chemistry would be mixed with alchemy and astronomy with astrology. Knowledge of the movements of stars and planets aided navigation and overland travel by night. But Muslims, like most other peoples, thought that heavenly bodies affected the lives of people, cities, and states, and so many of the caliphs kept court astrologers as advisers. Muslims also used astrolabes (devices for measuring the height q of stars in the sky) and built primitive versions of the telescope. One astronomer is said to have erected a planetarium that reproduced not only the movements of the stars but also peals of thunder and flashes of lightning. Muslim scientists, if not the public, knew that the earth was round and that it revolved around the sun, long before Copernicus or Galileo. /~\

“To come closer to earth, descriptive geography was a favorite subject. Thanks to the Arab conquests and the expansion of trade throughout the eastern hemisphere, Muslims liked to read books describing distant places and their inhabitants, especially if they were potential trading partners or converts to Islam. Much of what we know about Black Africa from the ninth to the thirteenth centuries comes from the writings of Arab travelers and geographers. History was a major discipline, too. Nearly every Muslim scientist had to write about the previous development of his specialty. Rulers demanded chronicles, either to publicize their own accomplishments, or to learn from their precursors' successes and failures. The ulama could never have developed the Shari'ah without first having biographies of Muhammad and his companions. Muslims also liked to read accounts of the early caliphs and conquests for amusement as well as instruction. Muslim historians were the first to try to structure history by looking for patterns in the rise and fall of dynasties, peoples, and civilizations. These efforts culminated in the monumental Muqaddimah of Ibn Khaldun (d. 1406), which linked the rise of states with the existence of a strong group feeling (asabiyah) between the leaders and their supporters. /~\

Arabs, Greeks, Europeans and Science


Arab version of Aristotle

Arab translators did the world a great service. They translated classical Greek works on philosophy, science, mathematics, medicine, astrology and alchemy. Hunayn ibn Ishaq (808-73), for example, a scholar in Baghdad, translated Plato and Aristotle and Galen's “Anatomy. The original Greek versions of these works were lost and probably would not survived if it were not for Ishaq's Arabic translations. The motivations for translating the classical works seems to have been both practical and scholarly. Knowledge relating to medicine, was particularly in demand. There also seemed to be intellectual curiosity. The great Islamic thinker al-Kindi (801-66) wrote: “We should not be ashamed to acknowledge truth from whatever source it comes to us, even if it is brought to us by former generations and foreign peoples. For him who seeks the truth there is no higher value than the truth itself.”

The Arabs supplied the cultural and scientific link between the Golden of Greece and Rome and the European Renaissance. The medieval European sources of valuable documents by Euclid and Ptolemy and others where Arab manuscripts that were translated into Latin in Toledo.

Some scholars believe that Arab knowledge played a part in triggering the Renaissance and accelerating the pace of the Age of Discovery. The Renaissance began as a rediscovery of classic Greek culture and many say that Arabs were the ones who were responsible for reintroducing writings by Greek authors. Translations of Arabic texts into Latin spread knowledge of instruments such as the astrolabe. Among the greatest advancements were the merging Arabic numerals with the Hindu concept of zero and Greek geometry and devising algebra and trigonometry and spreading them to Europe.

Christians, Jews and Arabs and Greco-Roman Texts

In many cases non-Muslims defeated in battle were offered the choice of conversion or death. An exception was made for Jews and Christians, who were allowed to continue their religious observances provided they acknowledged Muslim political authority and paid a tax. In this way there came to be in Muslim lands many communities of Christians and Jews, who sometimes acted as intermediaries in cultural exchange between Muslims and the Greeks and the Latins.


the great Muslim physician and thinker Avicenna

Thus Arab Christians were among the translators who (about A.D. 800) translated the works of Plato and Aristotle into Arabic, and Arabic-speaking Jews were among the translators who (in the 12th century) translated Greek and Arabic works of science and philosophy from Arabic into Latin. The bulk of Aristotle's works became known in Europe first in translations of Arabic translations from Greek (though translations were soon made direct into Latin from Greek) and were accompanied by translations of the Arabic writings of Muslim philosophers. Abu Nasr Muhammad al-Farabi, Abu 'Ali al-Husayn Ibn Sina and Abu al-Walid Muhammad Ibn Ahmad Ibn Rushd were well known in the universities of medieval Europe under the Latinised forms of their names, Alfarabi, Avicenna and Averroes.

“The works on politics written by the Islamic philosophers were based especially on Plato, with influence also from Aristotle's Ethics; Aristotle's Politics was not well-known, though Aristotle's other works were. Greek Neo-Platonists (Plotinus, Porphyry, Proclus and others) had tried to combine the philosophies of Plato and Aristotle; they held that these philosophies were fundamentally in harmony. This view was passed on to the Islamic philosophers, who expounded a more or less Platonized Aristotelianism.

Adelard of Bath: The Impact of Muslim Science

“Many texts of Greek science and philosophy were first translated into Syriac, then Arabic, before becoming available in the Latin. But Arab science was not only matter of conveying Greek ideas, but was also open to Persian and Indian science, as well as its own internal creativity. In some respects - for instance problems arising from a belief in a personal creator God - Arab/Muslim thinkerswere the first to deal with issues they had in common with Christian and Jewish thinkers. The Englishman Adelard of Bath (d. post 1142) was the first significant popularizer of Muslim science in the West. He studies and then taught at schools in France, and traveled throughout the Mediterranean. In particular he introduced Euclid and aspects of astronomy. As well as more technical treatises, he wrote Natural Questions - the selections here are from its preface and part of the body - which expresses his fundamental belief that God should not be invoked to explain what human knowledge can. [Source: Preface to His Very Difficult Natural Questions, [Dodi Ve-Nechdi] c. 1137 “Adelard of Bath, Dodi Ve-Nechdi,” ed. and trans. H. Gollancz, (London: Oxford University Press, 1920), pp. 91-92, 98-99, 137-138]

In “The Impact of Muslim Science,” Adelard of Bath wrote in the mid 12th century: “When I adduce something unfamiliar, people are to think not that I am putting forward an idea of my own, but am giving the views of the Arabs. If anything I say displeases the less educated, I do not want them to be displeased with me also: I know too well what is the fate which attends upon the teachers of the truth with the common herd, and consequently shall plead the case of the Arabs, not my own.


“I, with reason for my guide, have learned one thing from my Arab teachers, you, something different; dazzled by the outward show of authority you wear a head-stall. For what else should we call authority but a head-stall? Just as brute animals are led by the head-stall where one pleases, without seeing why or where they are being led, and only follow the halter by which they are held, so many of you, bound and fettered as you are by a low credulity, are led into danger by the authority of writers. Hence, certain people arrogating to themselves the title of authorities have employed an unbounded licence in writing, and this to such an extent that they have not hesitated to insinuate into men of low intellect the false instead of the true. Why should you not fill sheets of paper, aye, fill them on both sides, when to-day you can get readers who require no proof of sound judgment from you, and are satisfied merely with the name of a time-worn title? They do not understand that reason has been given to individuals that, with it as chief judge, distinction may be drawn between the true and the false.

“Unless reason were appointed to be the chief judge, to no purpose would she have been given to us individually: it would have been enough for the writing of laws to have been entrusted to one, or at most to a few, and the rest would have been satisfied with their ordinances and authority. Further, the very people who are called authorities first gained the confidence of their inferiors only because they followed reason; and those who are ignorant of reason, or neglect it, justly desire to be called blind. However, I will not pursue this subject any further, though I regard authority as matter for contempt. This one thing, however, I will say. We must first search after reason, and when it has been found, and not until then, authority if added to it, may be received. Authority by itself can inspire no confidence in the philosopher, nor ought it to be used for such a purpose. Hence logicians have agreed in treating the argument from authority not as necessary, but probable only. if, therefore, you want to bear anything from me, you must both give and take reason. I am not the man whom the semblance of an object can possibly satisfy; and the fact is, that the mere word is a loose wanton abandoning herself now to this man, now to that.”

Adelard of Bath’s nephew says: “I will put the first question that comes into my head: How is it that this earth of ours which supports all weights (I am speaking not of simples, but of compounds), how is it that it remains in the same place, or by what is it supported? If all heavy bodies, such as stone, wood, etc., require support, and cannot through their weight be supported by the air, then much more does the earth, which is heavier than everything else put together, require to be supported, nor can it be held in position by so unstable a body as the air. Hence it is contrary to reason that it should maintain its position.”

Adelard then said: “Certainly it is inexpedient that it should fall, and that we also shall not fall along with it. I will show that its remaining in its position is in accordance with reason. From the character of its primary qualities, we know that the earth has weight; that which has weight is more secure in the lowest position; and everything is naturally fond of that which preserves its life, and tends towards that for which it has a liking. It follows therefore that everything which is earthy tends towards the lowest possible position.


15th century European science book based on Muslim scholarship

But in the case of anything round, it is clear that the middle and the lowest are the same, and therefore all earthy things tend towards the middle position. Now the middle position is a simple and indivisible middle point, and it is therefore clear that all earthy things tend towards a local and simple point. But this local point is not several but one, and must necessarily be occupied by one thing, not by several; but to it, as has been said, all things tend: consequently each one thing presses on something else, since all and sundry are hastening to the same point.

“Now the point to which all weighty bodies are hastening is that to which they are falling, for the fall of weighty bodies is merely a hastening to a middle point. By the point to which they are falling I mean the fixed middle point. The place to which they are falling-the middle point -remains fixed; and therefore, while falling into a stable position, they yet remain fixed, unless some force be impressed on them as a result of which they are diverted from their natural course. The very opposite then is the case to what you thought; and you will now see clearly that it is what you thought to be a reason for falling which gives stability and coherence to heavy bodies. They are, therefore, in some way sup ported by the point to which they are hastening; and if it should move in any direction, all the things which are affected towards it would also of necessity move, though of course in that selfsame spot we have not the first but the second cause of stability: for, in accordance with the reason previously given, the first cause of this equilibrium is the property of the subject, the second the stability of the point which it makes for.”

Islamic World and the Western Renaissance

Maria Menocal wrote in “The Arabic Role in Medieval Literary History”: “While the "occidental-oriental" dichotomy of recent centuries identifies the World of Islam as separate and 'Eastern,' that world, is inextricably linked with the West. In general, however, "Westerners - Europeans - have great difficulty in considering the possibility that they are in some way seriously indebted to the Arab [Islamic] world, or that the Arabs [Muslims] were central to the making of medieval Europe" [Source: Maria Menocal, “The Arabic Role in Medieval Literary History,” 1987; p.xiii]

John W. Draper wrote in “History of the Intellectual Development of Europe”: "The Arab has left his intellectual impress on Europe, as, before long, Christendom will have to confess; he has indelibly written it on the heavens, as anyone may see who reads the names of the stars on a common celestial globe." [Source: John W. Draper, “History of the Intellectual Development of Europe,” Harper & Row; Vol.2, 1876 & 1904; p.42]

W. Montgomery Watt wrote in “Islamic Surveys: The Influence of Islam on Medieval Europe”: "Because Europe was reacting against Islam it belittled the influence of Saracens [Muslims] and exaggerated its dependence on its Greek and Roman heritage. So today an important task for us is to correct this false emphasis and to acknowledge fully our debt to the Arab and Islamic world". [Source: (W. Montgomery Watt, “Islamic Surveys: The Influence of Islam on Medieval Europe”, Edinburgh, England; 1972; p.84).

John Hayes wrote in “The Genius of Arab Civilization: Source of Renaissance”: "One of the hallmarks of civilized man is knowledge of the past - [including]the past of others with whom one's own culture has had repeated and fruitful contact; or the past of any group that has contributed to the ascent of man. The Arabs fit profoundly into both of the latter two categories. But in the West the Arabs are not well known. Victims of ignorance as well as misinformation, they and their culture have often been stigmatized from afar." [Source: John Hayes, “The Genius of Arab Civilization: Source of Renaissance,” MIT Press, 1983; p. 2)

“5. "Too often science in Arabia has been seen as nothing more than a holding operation. The area has been viewed as a giant storehouse for previously discovered scientific results, keeping them until they could be passed on for use in the West. But this is, of course, a travesty of the truth. Certainly the Arabs did inherit Greek science - and some Indian and Chinese science too, for that matter - and later passed it on to the West. But this is far from being all they did" (Colin Ronan, Science: Its History and Development Among World's Cultures; New York; 1982; p.203).


Abbasid House of Wisdom


Harvard’s George Sarton traces the "roots" of Western intellectual development to the Arab tradition, which was "the outstanding stream, and remained until 14th century one of the largest streams of medieval thought." Further, "The Arabs were standing on the shoulders of their Greek forerunners, just as the Americans are standing on the shoulders of their European ones. There is nothing wrong in that." Then Sarton criticizes those who "will glibly say 'The Arabs simply translated Greek writings, they were industrious imitators...' This is not absolutely untrue, but is such a small part of the truth, that when it is allowed to stand alone, it is worse than a lie", [Source: George Sarton, A Guide to the History of Science; Mass.; 1952; pp.27-28, “Islamic World and the Western Renaissance” by Dr. S. M. Ghazanfar, cyberistan.org]

Medieval European scholars who were influenced directly or indirectly by the writings of Islamic scholars includes: Adelard of Bath, Peter Abelard, Robert Grossetteste, Alexander of Hales, Albertus Magnus, St. Thomas Aquinas, St. Bonaventura, Duns Scotus, Roger Bacon, Marsilius of Padua, Richard of Middleton, Nicholas Oresme, Joannes Buridanus, Siger of Brabant, John Peckham, Henry of Gant, Williams of Occham, Walter Burley, William of Auvergne, Dante Algheri, Blaise Pascal, and numerous others.

The early 12th century Englishman, Adelard of Bath, acknowledged his debt to the Arabs, saying "I was taught by my Arab masters to be led only by reason, whereas you were taught to follow the halter of the captured image of ancient authority [i.e., authority of the Church]." [Source: Tina Stiefel, “The Intellectual Revolution in Twelfth Century Europe,” St. Martin's Press, N.Y., 1989; pp.71, 80).

Background Behind Early Islamic Science

Seyyed Hossein Nasr wrote in “Science and Civilization in Islam”: “In the sciences, especially those dealing with Nature, the most important source was the heritage of Greek civilization. Alexandria, by the first century B.C., had become the center of Greek science and philosophy, as well as the meeting place of Hellenism with Oriental and ancient Egyptian influences, out of which came Hermeticism and Neoplatonism. The Greek heritage, itself to a great extent an assemblage of ancient Mediterranean views, systematized and put into dialectical form by the peculiar discursive power of the Greeks passed from Alexandria to Antioch, and from there to Nisibis and Edessa, by way of the Christian Monophysites and Nestorians. The latter were particularly instrumental in the spreading of Greek learning, chiefly in Syriac translation, to lands as far east as Persia. [Source: Seyyed Hossein Nasr, “Science and Civilization in Islam,” New American Library. NY 1968 /+]

“In the third century A.D., Shapur I founded Jundishapur at the site of an ancient city near the present Persian city of Ahwaz, as a prisoner-of-war camp, for soldiers captured in the war with Valerian. This camp gradually grew into a metropolis, which became a center of ancient sciences, studied in Greek and Sanskrit and later in Syriac. A school was set up, on the model of those at Alexandria and Antioch, in which medicine, mathematics, astronomy, and logic were taught, mostly from Greek texts translated into Syriac, but also elements of the Indian and Persian sciences were included. This school, which lasted long after the establishment of the Abbasid caliphate, became an important source of ancient learning in the Islamic world. /+\


Persian astrological manuscript


“Aside from those more obvious avenues, there were also lines of communication with more esoteric aspects of the Greek sciences, particularly the Pythagorean school, through the community of Sabaeans of Harran. This religious community traced its origin to the Prophet Idns (the Enoch of the Old Testament), who is also regarded in the Islamic world as the founder of the sciences of the heavens and of philosophy, and who is identified by some with Hermes Trismegistus. The Sabaeans possessed a remarkable knowledge of astronomy, astrology, and mathematics; their doctrines were in many respects similar to those of the Pythagoreans. It was probably they who provided the link between the Hermetic Tradition and certain aspects of the Islamic esoteric doctrines, into which some elements of Hermeticism were integrated. /+\

“On the Oriental side the Indian and, to a lesser degree, the Persian sciences came to have an important bearing upon the growth of the sciences in Islam, a bearing far greater than is usually recognized. In zoology, anthropology, and certain aspects of alchemy, as well as, of course, in mathematics and astronomy, the tradition of Indian and Persian sciences was dominant, as can be seen in the Epistles (Rasail) of the Brethren of Purity (Ikhwan al-Safa') and the translations of Ibn Muqaffa'. It must be remembered that the words "magic" and Magi are related, and that, according to the legend, the Jews learned alchemy and the science of numbers from the Magi, while in captivity in Babylon. /+\

“There are most likely elements of Chinese science in Islam, especially in alchemy, pointing to some early contact between the Muslims and Chinese science. Some have even gone so far as to claimwithout much proof, to be sure — that the word al-klmiya' from which "alchemy" is derived, is itself an arabization of the classical Chinese word Chin-l which in some dialects is Kim-Ia and means "the gold-making juice." The most important influence from China, however, was to come in later centuries, particularly after the Mongol invasion, and then primarily in the arts and technology. /+\

“The totality of the arts and sciences in Islam thus consisted of a synthesis of the ancient sciences of the Mediterranean people, as incorporated and developed by the Greeks, along with certain Oriental elements. The dominant part of this heritage was definitely Graeco-Hellenistic, in translations either from Syriac or from the Greek itself, by such masters of translation as Hunain ibn Ishaq, and Thabit ibn Qurrah. There were numerous translations of Greek authors into Arabic in nearly every domain of knowledge. The ideas and points of views contained in these translations formed a large part of the nutriment which Islam sampled and then assimilated according to its own inner constitution, and the foundation given to it by tke Quranic revelation. In this way there developed, in conjunction with the three basic "dimensions" of the Law, the Path, and the Truth, Islamic schools which were to become an accepted part of Islamic civilization. /+\

Similarities and Difference Between Western and Muslim Views of Science

Seyyed Hossein Nasr wrote in “Science and Civilization in Islam”: “With respect to Greek learning itself, Muslims came to distinguish between two different schools, each possessing a distinct type of science: one, the Hermetic-Pythagorean school, was metaphysical in its approach, its sciences of Nature depending upon the symbolic interpretation of phenomena and of mathematics; in the other, the syllogistic-rationalistic school of the followers of Aristotle, the point of view was philosophical rather than metaphysical, and its sciences were therefore aimed at finding the place of things in a rational system, rather than at seeing, through their appearances, their heavenly essences. The first school was regarded as the continuation, in Greek civilization, of the wisdom of the ancient prophets, especially Solomon and Idris; it was therefore considered to be based on divine rather than human knowledge The second school was looked upon, for the most part, as reflecting the best effort the human mind could make to arrive at the truth, an effort of necessity limited by the finite nature of human reason. The first school was to become an integral part of Islam, certain of its cosmological sciences being integrated into some of the branches of Sufism. The second school did have many disciples in the earlier centuries and thus left an influence upon the language of Muslim theology after the seventh/thirteenth century, it lost ground, however and, despite its continuation up to the present day, it has remained a secondary aspect of Islamic intellectual life. /+\

“Here we have, stated authoritatively, the central perspective of Islamic thought, in which the component parts fall naturally into place. Each one is a different mode of knowing. It is puzzling at first sight to find nowhere in it the mathematicians, of whom Khayyam himself was such an eminent example. Notice, however, that the Ismailis correspond quite closely with what in the early Pythagorean school had been the Akusmatikoi, "those who go by what is told them." It should be noticed, also, that the Pythagorean Mathematikoi, the "expounders of the doctrine," will be found both among the philosophers and again among the Sufis, since systematic theory remains helpless without spiritual achievement, which is precisely what mathematics is intended to lead to, by contrast with syllogistic hair-splitting. This is clearly revealed in later sections of the same work in which Khayyam describes himself as both an orthodox Pythagorean and a Sufi. [Source: Seyyed Hossein Nasr, “Science and Civilization in Islam,” New American Library. NY 1968 /+]


Muslim celestial map with the signs of the zodiac and lunar mansions

“Here, too, we see the significant contrast with the Greek world. For the Pythagorean doctrines alluded to had become practically extinct there by the time of Aristotle, and were to be taken up again, and at that only after a fashion, in the Hellenistic revival; in Islam, we see them stabilized and restored almost according to their original pattern through the unitary religious idea. Islam was thus able to hand on to the West, to the extent that the latter accepted the Pythagorean tradition, something more coherent, as well as technically more advanced, than the West's own immediate heritage from antiquity. /+\

“There are other lines to be found in Khayyam's spectrum. The "atomistic" school of thought which flourished in Islam after the fourth/tenth century, and which in the Western pespective might be supposed to be scientific, he regards as not belonging to science at all, but to theology, for the Ash'arites who represented this school were exactly the sort of “theologians" he described. In the writings of the followers of this school, especially al-Baqillam, who may be considered their outstanding "philosopher of Nature, "the continuity of external forms is broken by an "atomistic" doctrine of time and space, and by the denial of the Aristotelian notion of causality. For the Ash'arites (as also for the Sufis), the world is annihilated and recreated at every moment; the cause of all events is the Creator and not a finite, created agent. A stone falls because God makes it fall, not because of the nature of the stone or because it is impelled by an external force. Whatappears as "Laws of Nature," i.e., the uniformity of sequence of cause and effect, is only a matter of habit, determined by the will of God and given the status of "law" by Him. Miracles, which seem to break the apparent uniformity of natural phenomena, are simply going against the "habit" of Nature; the Arabic word for a supernatural event means literally that which results from "rupture of habit." We are facing here a strict "consequentiality," which has its parallel in Western thought of the seventeenth century. From Descartes to the Occasionalists, the development presents curious similarities. /+\

“In the second grouping on Khayyam's list, the "philosophers and learned men," we would find assembled all the famous names of Islamic science. There is a sharp distinction, however, between two schools of "philosophical" thought, both of which profess to be disciples of the Greeks. The first is the Peripatetic school, whose doctrines are a combination of the ideas of Aristotle and of some Neoplatonists. The representative of this school who was closest to Aristotle was Averroes who, paradoxically, had less effect upon the Islamic than upon the Christian world, and should be studied more as a great member of the tradition of Western philosophy than as an integral part of Islamic intellectual life. /+\


Al Jazari water device from the 13th century

“The science of Nature cultivated by the Peripatetic school is primarily syllogistic: it seeks to determine the place of each being, in a vast system based upon the philosophy of Aristotle. The best expression of the doctrines of this school appears in Avicenna's early writings. The Book of Healing is the most comprehensive encyclopedia of knowledge ever written by one person, and undoubtedly the most influential Peripatetic work in Islam.The other Islamic school professing to follow the Greeks was much more sympathetic to the Pythagorean-Platonic than to the Aristotelian tradition. This school, which in later centuries came to be called the Illuminatist (ishraqi) school, asserts that it derives its doctrines not only from the Pythagoreans and their followers, but from the ancient Prophets, the Hermetic Tradition, and even from the ancient Zoroastrian sages. The symbolic works of Avicenna, such as Living Son of the Awake (Hayy ibn Yaqzan) are early expressions of the writings of this school. The greatest Illuminatist philosopher, however, is Suhrawardi, who drew his symbolism from all the many sources mentioned above.The sciences of Nature, as well as the mathematics cultivated by certain adherents of this school, are primarily symbolic, and resemble to a great extent the writings of sorne Neoplatonists. Nature becomes for the writers of this school a cosmic crypt from whose confines they must seek to escapeand on their journey through it, they see in its phenomena "signs," which guide them on the road toward final "illumination." Many Illuminatists, particularly those of later centuries, have also been Sufis, who have made use of the eminently initiatic language of the Illuminatist philosophers to describe the journey of the Sufi toward gnosis. Many members of this school, and in general the learned men whom Khayyam mentions, have also been among the group that have cultivated mathematics, astronomy, and medicine; for these learned men took an interest in all the arts and sciences, and helped to keep alive the traditions of learning in those fields, as an integral part of their studies in philosophy. /+\

“The Peripatetics were very strong during the fourth/tenth and fifth/eleventh centuries, but their influence weakened during the succeeding period. The Illuminatists, on the other hand, became strong after the sixth/twelfth century and al-Ghazzah's triumph. They have had a continuous tradition down to the present day, chiefly because of the metaphysical (as against rationalistic) emphasis in their doctrines, and also because of the use of their language by certain Sufi masters. One of the greatest exponents of Illuminatist doctrines, as interpreted and modified by the Safavid sage Mulla Sadra, was Hajil Mulla Hadi Sabziwari who died in Persia less than a century ago.” /+\

Mystic Influences on Muslim Science

Seyyed Hossein Nasr wrote in “Science and Civilization in Islam”: “The Ismailis, to whom Khayyam next refers, are a branch of Shia Islam, which was very powerful in his time, and also played a considerable role in the cultivation of the arts and sciences. Ismaili doctrines are fundamentally esoteric, being based on numerical symbolism and the symbolic interpretation of the "cosmic text." The symbolic interpretation of the Quran, which is basic in Shia Islam as well as in Sufism, was made the basis for the symbolic study of Nature. Moreover, such sciences as alchemy and astrology became integrated into their doctrines, and such texts as the Epistles of the Brethren of Purity, and the numerous writings of Jabir ibn Hayyan, the alchemist, were to have their greatest influence upon this group. The development of what has been called "Oriental neo-Pythagoreanism" is found most clearly in the treatises of the Ismailis. They were very much interested in the sciences of Nature; in integrating the rhythms and cycles of Nature with the cycles of history and with the manifestations of various prophets and imams, their works rank among the most important Islamic writings on Nature. [Source: Seyyed Hossein Nasr, “Science and Civilization in Islam,” New American Library. NY 1968 /+]


magical mirror

“Khayyam mentions, finally, the Sufis or gnostics, the group to which he himself belonged. It may seem surprising that a man so well versed in the arts and sciences of his day should consider the "way of purification" of the Sufis as the best way of acquiring knowledge. His language in this regard, however, is not merely theoretical, it is almost operational: one cleanses and focuses the instrument of perception, i.e., the soul, so that it may see the realities of the spiritual world. Aristotle himself, the great rationalist, had once said that "knowledge is according to the mode of the knower." The gnostic, in employing the "right" mode of knowledge ensures that Intellection takes place in him immediately and intuitively. In this regard, Khayyam's statement becomes clearer when seen in the light of a doctrine that we shall discuss later: the doctrine of the universal man, who is not only the final goal of the spiritual life, but also the archetype of the universe. /+\

“To the extent that the gnostic is able to purify himself of his individualistic and particular nature, and thus to identify himself with the universal man within him, to that same extent does he also gain knowledge of the principles of the cosmos, as well as of the Divine realities. For the gnostic, knowledge of Nature is secondary to knowledge of the Divine Principle; yet, because of the rapport between the gnostic and the universe, Nature does play a positive role in guiding him to his ultimate goal. The phenomena of Nature become "transparent" for the gnostic, so that in each event he "sees" the archetype. The symbols of substances -- geometric forms and numerical quantities, colors, and directions -- these and many other such symbols are aspects of the being of things. They increase in their reality -- a reality independent of personal taste or of the individual -- to the extent that the gnostic divorces himself from his individual perspective and limited existence, and identifies himself with Being. For the gnostic, the knowledge of anything in the universe means ultimately knowledge of the relationship between the essence of that particular being and the Divine Intellect, and the knowledge of the ontological relationship between that being and Being itself. /+\

Image Sources: Wikimedia Commons

Text Sources: Internet Islamic History Sourcebook: sourcebooks.fordham.edu ; Arab News, Jeddah; “Islam, a Short History” by Karen Armstrong; “A History of the Arab Peoples” by Albert Hourani (Faber and Faber, 1991); Metropolitan Museum of Art, Encyclopedia.com, National Geographic, BBC, New York Times, Washington Post, Los Angeles Times, Smithsonian magazine, The Guardian, Al Jazeera, The New Yorker, Reuters, Associated Press, AFP, Library of Congress and various books and other publications.

Last updated April 2024


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