This article by Professor Mubahat Turker-Kuyel, was first published in the Turkish review Erdem, 18 (1990). Ankara 1992, pp. 737-747. We are grateful to Imran Baba, editor of Erdem for allowing publication.
Al-Fârâbî says that philosophy comes to us from the ancient Greeks, especially from Plato and Aristotle who have founded and perfected it.
Historians of philosophy begin their topics, after citing the name of Homer, with those of the "Seven Sages" among whom Thales is cited first. All the people who are interested in philosophy know that the word philosophy is composed of philia, that is quest and love and sophos that is wisdom. It seems that the word philosophy is an invention of the Pythagoreans.
In the literature, the following questions have been asked rather frequently: "What is wisdom?" "What is the relation between wisdom and philosophy?" "Is this wisdom invention of ancient Greeks or contributions from other cultures?" It seems to me that it is possible to ask these questions now with reference to Plato, Aristotle, Beressos, Ibn Newbakht, al-Fârâbî, Ibn Maymun, Roger Bacon, Miklosh Daczi Yanos, and, to the recent studies on ancient Mesopotamia.
With this article, we ask all these questions and we utilize the works of al-Fârâbî, his definitions and his terms as a referable source. And we see, that according to him, wisdom has come to us from the Chaldeans; and that it is the basis of philosophy and science, as well as religion, and, that it makes the distinction between that which is intelligible with certainty, and religion which lets us know the truth by image through similitude and offers us conviction, belief and persuasion. The starting point of al-Fârâbî in these subjects is certainly found in his very important little book, entitled "The Conditions of Certain Truth." All these aspects reveal the beginning of the history of philosophy.
As regards to the ancient or new bibliographic and bio-bibliographic sources it is well known that al-Fârâbî has written many treatises on the definitions of philosophy, its appearance in the world, its transmission from one culture to another and the meaning of the philosopher's names, as well as which things are necessary before beginning to study philosophy. We have at hand some of these books, while we do not have some others. But al-Fârâbî has, always, taken these subjects into consideration directly or indirectly in his main books. At the same time he has given to us the definitions of wisdom and philosophy. The following are the definitions of the not divine but human wisdom given by al-Fârâbî to us:
- "Wisdom is the knowledge about the First One from whom all the creatures have gotten their virtues and perfections." 
- "Wisdom is the knowledge about the ultimate and supreme principles of creatures." 
- "Wisdom is the veneration before the most venerable subject by knowing it by means of the most venerable knowledge." 
- "Wisdom is searching on the ultimate happiness." 
- "Wisdom is the virtue of the parts of the rational soul  such as intelligence, reason, understanding, cleverness, just as courage, righteousness and altruism are the virtues of the parts of the animal soul like lust and passion."Indeed, according to al-Fârâbî, the virtues are either "theoretical" or "deliberative" or "moral" or "practical" for all people or "nations" (Milla).
All previously mentioned definitions of wisdom are the same by essence although they seem different at first glance. This is because the theoretical virtue of man and his searching for "certain truth" is wisdom in itself. 
We could appreciate this point also in taking into account the outlines of the philosophy of al-Fârâbî and his definitions of philosophy.
It is well known that, according to the philosophical views of al-Fârâbî, existence per se is only for God Himself. This means that God exists necessarily, while His creatures are existent only by God. God is the one and absolute existent per autrui whose essence is His own existence.  God possesses wisdom and intellect. Thinking His essence, God, gives their existence to His creatures as well as to man. Therefore, from the First One emanates the Intellect, the Soul and the Matter. The essence of God being wisdom, and since Intellectus, Intelligens and Intellectum, all the Universe, including men, are emanated from His knowledge, all the Universe should be constructed according to divine wisdom. For this reason, the knowledge of man about God, and His creatures as they are, is human wisdom itself and the search of man for knowledge of these subjects is the theoretical virtue itself.
The drawing of Ibn Sînâ on the Pakistan stamp. The stamp reads: Hakim Ibn E-Sina (980-1037), Health from Herbs.
The wisdom of God is identical with His life i.e. God's wisdom is "the intellection about the most venerable subject by means of the most venerable knowledge." "The most venerable subject" is God Himself. According to the philosophical view of Ibn Sînâ man finds, the "ultimate happiness" in the searching for knowledge about God. This means that man comes to imitate God's wisdom and life and that the response of man to the "Creatio Dei"(God's creatures) is only by "Imitatio Dei"(imitation of God). For example, the response of man to the "Tajallî" (manifestation) of God is only by the "Ittisâl" (contact, conjunction) of man with Him."Imitatio Dei" is then, man's theoretical virtue itself. According to al-Fârâbî, the purpose of man to study philosophy is to know God in order to imitate Him as much as possible.  Further, "philosophy is to know the being as being." "The end of philosophy is to know all beings as they are." Philosophy concerns all being, as in theoretical or practical philosophy. Mathematics (including Arithmetic, Geometry, Astronomy and Music), Physics and Theology are theoretical philosophy, while moral, economical and political sciences are practical ones.
With all these views, al-Fârâbî establishes a parallelism between wisdom and philosophy on the one hand and a connection between wisdom and moral and political sciences on the other. He proposes wisdom as the way to the "attainment" of the ultimate happiness which is also attainment to the "certain knowledge" about God. One could attain to knowledge with certainty about God, when one studies all beings as they are or being as being. These topics are studied in the "Book of Lambda", part of the Metaphysics of Aristotle. These subjects are called sometimes "metaphysics", sometimes as "theology".  Theologies come "after" physics. Its place is "higher"than it. For, to study the principles of beings and the subjects whose separation from matter is not imagery like those of Mathematics, but ontological, is the most venerable thing to do for man. All these subjects are the most venerable ones. One knows all these "most venerable subjects" by mean of the "most venerable science" which is both the "certain truth" andthe "theoretical virtue". One attains to the "ultimate happiness" by integrating his "theoretical virtue" with the "deliberative" and "moral" virtues as well as with the "practical arts".
With these considerations, al-Fârâbî puts together wisdom based on philosophy, and science, as well as that of religion. Then, it is clear, why in the Turkish language Physics and Biology have been called for a long time "the wisdom about nature" or "the natural wisdom" (Hikmet-i tabiiyye).
For, according to al-Fârâbî, man possesses the "certain truth" as the human intellect concerns a being and the knowledge about it is exactly being the same as it is. Both this being and the knowledge about it are called "truth" or "truthfulness". When there is no doubt within the human mind about the knowledge about a being that it is exactly the same as this thing itself, this "truth" becomes "certain". Then, this state of human mind is called "certain truth". When any human intellect is not concerned about any being this being does not become "truth", it rests alone as a being. When the human intellect is concerning with the Eternal Being; with certainty, manhas then, the "certain truth" the "true science", the "most venerable science".
Man attains to it by asking the following questions and taking their "certain"responses which are similar to the mathematical definitions: "Whether the thing is", "What is it?", "By which, from which, for which is it?", "Why is it?" These questions and their responses are called the "Principles of instruction". Man attains to the First Principle by asking all the time to himself the following questions: "Whether the thing is", "Why the thing is", and having their "certain" responses.  The "Principles of Being" are the following questions and their "certain" responses: "What", "By what" and "How the thing is", "For what it is." In some subjects, like the mathematical ones, the "Principles of instruction" are the same as the "Principles of being", while in some subjects it is not.  There is not any "true science" about the changing objects, of course,  Man attains to the "true science" through "apodeictic", that is,"certain demonstration' starting with premises which are true, general, and necessary. To attain to the "true science" orthe "most venerable science" isto attain to the "certain truth".
A calligraphy that mentions about wisdom (hikma): Ra's al-Hikmatu mahâfatullah.
According to al-Fârâbî, this "most venerable science" that the ancient "Greeks used to call the true wisdom,is the highest wisdom. They call the acquisition of it science and the scientific state of mind philosophy, by which they meant the quest and the love for the highest wisdom. They held that, potentially, it subsumes all the virtues. They called it science of science, the mother of sciences, thewisdom of wisdoms and the art of arts. They meant the art that makes use of all the arts, the virtue that makes use of all the virtues and the wisdom that makes use of all wisdoms. Now wisdom may be used for consummate and extreme competence in any art whatsoever when it leads to performing feats of which most practitioners of that art are incapable. Here wisdom is used in a qualified sense. Thus, he who is extremely competent in art is said to bewise in that art. Similarly, a man with penetrating practical judgment and acumen may be called wise in the thing regarding which he has penetrating practical judgment. However true wisdom is this science and state of mind alone.  When the theoretical sciences are isolated and their possessors do not have the faculty for exploiting them for the benefit of others, they are defective philosophy. To be truly a perfect philosopher, one has to possess both the theoretical sciences and the faculty for exploiting them for the benefit of all others according to their capacity. Were one to consider the case of the true philosopher, he would find no difference between him and the supreme ruler."
According to al-Fârâbî, "There are two ways of making a thing comprehensible; first by causing its essence to be perceived by the intellect — this is the method of"certain demonstration"— and, second, by causing it to be imagined through the similitude that imitates it — this is the method of persuasion —. When one acquires knowledge of the beings or receives instruction in them, if he perceives their ideas themselves with his intellect and his assent to them this is by means of certain demonstration; then, the science that comprises these cognitions is philosophy. But, if they are known by imagining them through similitudes that imitate them and assent to what is imagined of them is caused by the persuasive method, then the Ancients call what comprises these cognitions Religion. And, if those intelligibles themselves are adopted and persuasive methods are used, then, the religion comprising them is called popular, generally accepted, and external philosophy. Therefore, according to the Ancients, religion is an imitation of philosophy. Both comprise the same subjects and both give an account of the ultimate principles of the beings. For both supply knowledge about the first principle and cause of the beings, and both give an account of the ultimate end for the sake of which man is made — that is the supreme happiness — and the ultimate end of every one of the other beings. In everything of which philosophy gives an account based on intellectual perception or conception, religion gives an account based on imagination. In everything demonstrated by philosophy, religion employs persuasion.  Philosophy gives an account of the ultimate principles as they are perceived by the intellect. Religion set forth its images by means of similitudes of them taken from corporal principles and imitates them by their likeness among political offices. It imitates the divine acts by means of the functions of political offices. It imitates the actions of natural powers and principles of their likeness among the faculties. States and arts have to do with the will, just as Plato does in the Timaeus. It imitates the intelligibles by their likenesses among the sensible: For instance, some imitate matter by abyss or darkness or water, andnothingness by darkness. It imitates the classes of supreme happiness by their likenesses among the good that are believed to be the ends. It imitates the classes of true happiness by means of the ones that are believed to be happiness. It imitates the ranks of the beings by their likenesses among spatial and temporal ranks. And, it attempts to bring the similitudes of these things as close as possible to their essences. Also, in everything of which philosophy gives an account that is demonstrative and certain, religion gives an account based on persuasive arguments. Finally philosophy is prior to religion in time,  and the subjects of wisdom or philosophy are more comprehensive than those of religion. In the last analysis, the meanings of "Milla", "Sunna", "Umma" and "Sharî'a" should be the same. Likewise, the "ultimate happiness" should be the same for all umma's, while their symbols are different.  This means that the essence of all the religions is the same, although their external forms or their symbols are different. The idea of the true philosopher, supreme ruler, prince, legislator and Imam is but a single idea. But, religion is the instruction of people by persuasion and imagination. Because according to al-Fârâbî, when the logic, with which one searches what is common for all languages is used in the parts of philosophy, one attains to the certainty. Thus, the "certain demonstration" is used in philosophy. The "certain demonstration" is a kind of syllogism formed with premises which are certain.  The "certain demonstration" is attainable only through the "certain affirmation". There are also other lands of affirmations which are nearest to the certainty, giving to us opinion or persuasion or conviction. All these other kinds of affirmations are used by religions as rhetorical, popular and generally accepted arguments. 
Ibn Sînâ drawing by A. Suheyl Unver
The "certain demonstration" is other than the certainty itself. Therefore, the "certain demonstration" is a scientific syllogism formed with the premises which are general, true and necessary, while certainty is a state of mind to which one attains by starting from the premises which are true, necessary, general, primary, immediate, indemonstrable, first, more intelligible than and prior to the conclusion and causes of the conclusion. 
The proposition, which informs us of the necessary existence of a thing, is invertible with the proposition that is necessarily certain and informs us about it.There is not any being which is necessary with the exception of God. The only being that is necessary is God Himself. Other beings are possible in the different degree of majority, equality, minority and eventuality. The natural things are not necessary but possible in the degree of majority. The thing, which is possible in the degree of equality, is called neither contingent, that is not possible to say neither "is" (true) nor "is not" (true) about it. They who give us "true demonstration" about creation and attain to the "certain truth" about it, are the philosophers, they who give us the"persuasive demonstration" are theologians.  But, the "true demonstrations" of philosophers are superior and most venerable. 
According to al-Fârâbî, man knows God and divine subjects by means of intellect.The intellect is the nearest being to God. It is a part of the "most honourable world". It is the "most honourable part of human soul." It is a part and a faculty of the human soul by means of which man comprehends the "certain truth". When. God created the beings; He gave the most convenient nature to man to receive the intellectual soul. . The first place for the human soul is in the heart  which is one of the parts of the human body. The knowledge about the First One is the attainment to the ultimate happiness which is the specific perfection of man.This is the First and Eternal One who gives to the beings as well as to the man their virtues and perfection.
The Supreme Ruler prepares his people to the virtuous city by instruction with"certain truth". There is a parallelism between God, Universe, Society and Peoples. The people of the virtuous city are those who know wisdom and justice. One attains to the Milla through the "certain truth" or similitude as we said before. It is clear now from all these explanations that, "true wisdom" is the "most honorable science" or the "certain truth" according to al-Fârâbî. According to him "it is said that this science existed anciently among the Chaldeans  who are the people of Iraq, subsequently reaching the people of Egypt, from there transmitted to the Greeks, where it remained until it was transmitted to the Syrians, and then to the Arabs. Everything comprised by this science was expounded in the Greek language, later in Syriac and finally in Arabic." We have also very detailed information coming from al-Fârâbî, included in cUyûn al-Anbâ' and appreciated by Max Meyerhof on the transmission of philosophy from the Greeks to the world of Islam. 
Ancient and new archeological studies on the literature of wisdom and science in Ancient Mesopotamia and especially in Sumer made by many cuneiformists, especially by Thureau-Dangin, Neugebauer, Thomson, Arno Poebel, Landsberger, Van Dyck, Kramer, affirm the main thesis of al-Fârâbî.
As a result, we could say that, although al-Fârâbî says that philosophy comes to us from the Greeks, especially from Plato and Aristotle, both the definitions and the history of wisdom, in the light of works of al-Fârâbî as well as those of cuneiform literature, point out to us that the main conceptions of Greek philosophy and philosophers are included in the Mesopotamian, especially Sumerian literature of wisdom.
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 Kitâb al-Cam' Bayna Ra'yayn al-Hakimayn, 1, Dieterici, Leiden 1890.
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by: Prof. Mubahat Turker-Kuyel