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TAHAFUT AL-TAHAFUT
(The Incoherence of the Incoherence)
AVERROES (IBN RUSHD)
Muhammad Hozien
TABLE OF CONTENTS
: Concerning the Eternity of the World
: The Refutation of their Theory of the Incorruptibility of the World and of Time and Motion
The demonstration of their confusion in saying that God is the agent and the maker of the world and that the world in His product and act, and the demonstration that these expressions are in their system only metaphors without any real sense
Showing that they are unable to prone the existence of a creator of the world
: To show their incapacity to prove God’s unity and the impossibility of two necessary existents both without a cause
To refute their denial of attributes
: To refute their claim that nothing cars share with the First its genus and be differentiated from it through a specific difference, and that with respect to its intellect the division into genus and specific difference cannot be applied to it
: To refute their theory that the existence of the First is simple, namely that it is pure existence and that its existence stands in relation to no quiddity and to no essence, but stands to necessary existence as do other beings to their quiddity
: To refute their proof that the First is incorporeal
To prove their incapacity to demonstrate that the world has a creator and a cause, and that in fact they are forced to admit atheism
: To show the incapacity of those philosophers who believe that the First knows other things besides its own self and that it knows the genera and the species in a universal way, to prone that this is so
About the impotence of the philosophers to prone that Cod knows Himself
To refute those who arm that Gad is ignorant of the individual things which are divided in time into present, past, and future
: To refute their proof that heaven is an animal mowing in a circle in obedience to God To refute the theory of the philosophers about the aim which moves heaven
: To refute the philosophical theory that the souls of the heavens observe all the particular events of this world
The denial of a logical necessity between cause and effect
: The impotence of the philosophers to show by demonstrative proof that the soul is a spiritual substance
Refutation of the philosophers’ proof for the immortality of the soul
Concerning the philosophers’ denial of bodily resurrection
PREFACE
I wish to express my warmest thanks to the Trustees of the Gibb Memorial Fund for making the publication of this work possible, and especially to Professor Sir Hamilton Gibb, who asked me to undertake the work and who has not only read the proofs but has continually given me his interest and encouragement. I am also deeply indebted to Dr. R. Walzer, who has read the proofs, carefully checked the references in my notes, and composed the indexes and the Greek-Arabic and Arabic-Greek vocabularies. I have also to thank Dr. S. M. Stern for his help in completing the subject-index. Finally, I wish to pay a tribute to one who is no longer amongst us, Father Maurice Bouyges, without whose admirable text the work could never have been undertaken. The marginal numbers in Vol. I refer to the text of Father Bouyges’s edition of the Tahafut al Tahafut in his Bibliotheca Arabica Scholasticorum, vol. iii, Beyrouth, 1930. The asterisks indicate different readings from those to be found in Bouyges’s text: cf. the Appendix, Vol. I, pp, 364 ff.
INTRODUCTION
If it may be said that Santa Maria sopra Minerva is a symbol of our European culture, it should not be forgotten that the mosque also was built on the Greek temple. But whereas in Christian Western theology there was a gradual and indirect infiltration of Greek, and especially Aristotelian ideas, so that it may be said that finally Thomas Aquinas baptized Aristotle, the impact on Islam was sudden, violent, and short. The great conquests by the Arabs took place in the seventh century when the Arabs first came into contact with the Hellenistic world. At that time Hellenistic culture was still alive; Alexandria in Egypt, certain towns in Syria-Edessa for instance-were centres of Hellenistic learning, and in the cloisters of Syria and Mesopotamia not only Theology was studied but Science and Philosophy also were cultivated. In Philosophy Aristotle was still ‘the master of those who know’, and especially his logical works as interpreted by the Neoplatonic commentators were studied intensively. But also many Neoplatonic and Neopythagorean writings were still known, and also, very probably, some of the old Stoic concepts and problems were still alive and discussed. The great period of translation of Greek into Arabic, mostly through the intermediary of Christian Syrians, was between the years 750 and 850, but already before that time there was an impact of Greek ideas on Muslim theology. The first speculative theologians in Islam are called Mu‘tazilites (from about A. D. 723), an exact translation of the Greek word (the general name for speculative theologians is Mutakallimun, dialecticians, a name often given in later Greek philosophy to the Stoics). Although they form rather a heterogeneous group of thinkers whose theories are syncretistic, that is taken from different Greek sources with a preponderance of Stoic ideas, they have certain points in common, principally their theory, taken from the Stoics, of the rationality of religion (which is for them identical with Islam), of a lumen naturale which burns in the heart of every man, and the optimistic view of a rational God who has created the best of all possible worlds for the greatest good of man who occupies the central place in the universe. They touch upon certain difficult problems that were perceived by the Greeks. The paradoxes of Zeno concerning movement and the infinite divisibility of space and time hold their attention, and the subtle problem of the status of the nonexistent, a problem long neglected in modern philosophy, but revived by the school of Brentano, especially by Meinong, which caused an endless controversy amongst the Stoics, is also much debated by them. A later generation of theologians, the Ash‘arites, named after Al Ash‘ari, born A. D. 873, are forced by the weight of evidence to admit a certain irrationality in theological concepts, and their philosophical speculations, largely based on Stoicism, are strongly mixed with Sceptical theories. They hold the middle way between the traditionalists who want to forbid all reasoning on religious matters and those who affirm that reason unaided by revelation is capable of attaining religious truths. Since Ghazali founds his attack against the philosophers on Ash‘arite principles, we may consider for a moment some of their theories. The difference between the Ash‘arite and Mu‘tazilite conceptions of God cannot be better expressed than by the following passage which is found twice in Ghazali (in his Golden Means of Dogmatics and his Vivification of Theology) and to which by tradition is ascribed the breach between Al Ash‘ari and the Mu‘tazilites. ‘Let us imagine a child and a grown-up in Heaven who both died in the True Faith, but the grown-up has a higher place than the child. And the child will ask God, “Why did you give that man a higher place?” And God will answer, “He has done many good works.” Then the child will say, “Why did you let me die so soon so that I was prevented from doing good?” God will answer, “I knew that you would grow up a sinner, therefore it was better that you should die a child.” Then a cry goes up from the damned in the depths of Hell, “Why, O Lord, did you not let us die before we became sinners?” ’ Ghazali adds to this: ‘the imponderable decisions of God cannot be weighed by the scales of reason and Mu‘tazilism’. According to the Ash‘arites, therefore, right and wrong are human concepts and cannot be applied to God. ‘Cui mali nihil est nec esse potest quid huic opus est dilectu bonorum et malorum?’ is the argument of the Sceptic Carneades expressed by Cicero (De natura deorum, iii. 15. 38). It is a dangerous theory for the theologians, because it severs the moral relationship between God and man and therefore it cannot be and is not consistently applied by the Ash‘arites and Ghazali. The Ash‘arites have taken over from the Stoics their epistemology, their sensationalism, their nominalism, their materialism. Some details of this epistemology are given by Ghazali in his autobiography: the clearness of representations is the criterion for their truth; the soul at birth is a blank on which the sensations are imprinted; at the seventh year of a man’s life he acquires the rational knowledge of right and wrong. Stoic influence on Islamic theology is overwhelming. Of Stoic origin, for instance, are the division of the acts of man into five classes; the importance placed on the motive of an act when judging its moral character; the theory of the two categories of substance and accident (the two other categories, condition and relation, are not considered by the Muslim theologians to pertain to reality, since they are subjective); above all, the fatalism and determinism in Islam which is often regarded as a feature of the Oriental soul. In the Qur’an, however, there is no definite theory about free will. Muhammad was not a philosopher. The definition of will in man given by the Ash‘arites, as the instrument of unalterable fate and the unalterable law of God, is Stoic both in idea and expression. (I have discussed several other theories in my notes.) Sometimes, however, the theologians prefer to the Stoic view the view of their adversaries. For instance, concerning the discussion between Neoplatonism and Stoicism whether there is a moral obligation resting on God and man relative to animals, Islam answers with the Neoplatonists in the affirmative (Spinoza, that Stoic Cartesian, will give, in his Ethica, the negative Stoic answer). The culmination of the philosophy of Islam was in the tenth and eleventh centuries. This was the age also of the great theologians. It was with Greek ideas, taken in part from Stoics and Sceptics, that the theologians tried to refute the ideas of the philosophers. The philosophers themselves were followers of Aristotle as seen through the eyes of his Neoplatonic commentators. This Neoplatonic interpretation of Aristotle, although it gives a mystical character to his philosophy which is alien to it, has a certain justification in the fact that there are in his philosophy many elements of the theory of his master Plato, which lend themselves to a Neoplatonic conception. Plotinus regarded himself as nothing but the commentator of Plato and Aristotle, and in his school the identity of view of these two great masters was affirmed. In the struggle in Islam between Philosophy and Theology, Philosophy was defeated, and the final blow to the philosophers was given in Ghazali’s attack on Philosophy which in substance is incorporated in Averroës’ book and which he tries to refute. Ghazali, who was born in the middle of the eleventh century, is one of the most remarkable and at the same time most enigmatic figures in Islam. Like St. Augustine, with whom he is often compared, he has told us in his autobiography how he had to pass through a period of despair and scepticism until God, not through demonstration but by the light of His grace, had given him peace and certitude. This divine light, says Ghazali, is the basis of most of our knowledge and, he adds, profoundly, one cannot find proofs for the premisses of knowledge; the premisses are there and one looks for the reasons, but they cannot be found. Certitude is reached, he says, not through scholastic reasoning, not through philosophy, but through mystical illumination and the mystical way of life. Still Ghazali is not only a mystic, he is a great dogmatist and moralist. He is regarded as Islam’s greatest theologian and, through some of his books, as a defender of Orthodoxy. It is generally believed that the Tahafut, the book in which he criticizes Philosophy, was written in the period of his doubts. The book, however, is a Defence of Faith, and though it is more negative than positive, for it aims to destroy and not to construct, it is based on the theories of his immediate predecessors, many of whose arguments he reproduces. Besides, he promises in this book to give in another book the correct dogmatic answers. The treatise to which he seems to refer does not contain anything but the old theological articles of faith and the Ash‘arite arguments and solutions. But we should not look for consistency in Ghazali; necessarily his mysticism comes into conflict with his dogmatism and he himself has been strongly influenced by the philosophers, especially by Avicenna, and in many works he comes very near to the Neoplatonic theories which he criticizes. On the whole it would seem to me that Ghazali in his attack on the philosophers has taken from the vast arsenal of Ash‘arite dialectical arguments those appropriate to the special point under discussion, regardless of whether they are destructive also of some of the views he holds. Averroës was the last great philosopher in Islam in the twelfth century, and is the most scholarly and scrupulous commentator of Aristotle. He is far better known in Europe than in the Orient, where few of his works are still in existence and where he had no influence, he being the last great philosopher of his culture. Renan, who wrote a big book about him, Averroes et l’Averro’asme, had never seen a line of Arabic by him. Lately some of his works have been edited in Arabic, for instance his Tahafut al Tahafut, in a most exemplary manner. Averroës’ influence on European thought during the Middle Ages and the Renaissance has been immense. The name of Ghazali’s book in which he attacks the philosophers is Tahafut al Falasifa, which has been translated by the medieval Latin translator as Destructio Philosophorum. The name of Averroës’ book is Tahafut al Tahafut, which is rendered as Destructio Destructionis (or destructionum). This rendering is surely not exact. The word ‘Tahafut’ has been translated by modern scholars in different ways, and the title of Ghazali’s book has been given as the breakdown, the disintegration, or the incoherence, of the philosophers. The exact title of Averroës’ book would be The Incoherence of the Incoherence. In the Revue des Deux Mondes there was an article published in 1895 by Ferdinand Brunetiere, ‘La Banqueroute de la Science’, in which he tried to show that the solutions by science, and especially by biology, of fundamental problems, solutions which were in opposition to the dogmas taught by the Church, were primitive and unreasonable. Science had promised us to eliminate mystery, but, Brunetiere said, not only had it not removed it but we saw clearly that it would never do so. Science had been able neither to solve, nor even to pose, the questions that mattered: those that touched the origin of man, the laws of his conduct, his future destiny. What Brunetiere tried to do, to defend Faith by showing up the audacity of Science in its attempt to solve ultimate problems, is exactly the same as Ghazali tried to do in relation to the pretensions of the philosophers of his time who, having based themselves on reason alone, tried to solve all the problems concerning God and the world. Therefore a suitable title for his book might perhaps be ‘The Bankruptcy of Philosophy’. In the introduction to his book Ghazali says that a group of people hearing the famous names Socrates, Hippocrates, Plato, and Aristotle, and knowing what they had attained in such sciences as Geometry, Logic, and Physics, have left the religion of their fathers in which they were brought up to follow the philosophers. The theories of the philosophers are many, but Ghazali will attack only one, the greatest, Aristotle; Aristotle, of whom it is said that he refuted all his predecessors, even Plato, excusing himself by saying ‘amicus Plato, amica veritas, sed magis amica veritas’. I may add that this well-known saying, which is a variant of a passage in Plato’s Phaedo and in Aristotle’s Nicomachean Ethics, is found in this form first in Arabic. One of the first European authors who has it in this form is Cervantes (Don Quijote, ii, c. 52). I quote this saying-Ghazali adds-to show that there is no surety and evidence in Philosophy. According to Ghazali, the philosophers claim for their metaphysical proofs the same evidence as is found in Mathematics and Logic. But all Philosophy is based on supposition and opinion. If Metaphysics had the same evidence as Mathematics all philosophers would agree just as well in Philosophy as in Mathematics. According to him the translators of Aristotle have often misunderstood or changed the meaning and the different texts have caused different controversies. Ghazali considers Farabi and Avicenna to be the best commentators on Aristotle in Islam, and it is their theories that he will attack. Before entering into the heart of the matter I will say a few words about Ghazali’s remark that Metaphysics, although it claims to follow the same method as Mathematics, does not attain the same degree of evidence. Neither Aristotle nor his commentators ever asked the question whether there is any difference between the methods of Mathematics and Metaphysics (it is a significant fact that most examples of proof in the Posterior Analytics are taken from Mathematics) and why the conclusions reached by Metaphysics seem so much less convincing than those reached by Mathematics. It would seem that Metaphysics, being the basis of all knowledge and having as its subject the ultimate principles of things, should possess, according to Aristotle, the highest evidence and that God, as being the highest principle, should stand at the beginning of the system, as in Spinoza. In fact, Aristotle could not have sought God if he had not found Him. For Aristotle all necessary reasoning is deductive and exclusively based on syllogism. Reasoning-he says-and I think this is a profound and true remark-cannot go on indefinitely. You cannot go on asking for reasons infinitely, nor can you reason about a subject which is not known to you. Reason must come to a stop. There must be first principles which are immediately evident. And indeed Aristotle acknowledges their existence. When we ask, however, what these first principles are, he does not give us any answer but only points out the Laws of Thought as such. But from the Laws of Thought nothing can be deduced, as Aristotle acknowledges himself. As a matter of fact Aristotle is quite unaware of the assumption on which his system is based. He is what philosophers are wont to call nowadays a naive realist. He believes that the world which we perceive and think about with all it contains has a reality independent of our perceptions or our thoughts. But this view seems so natural to him that he is not aware that it could be doubted or that any reason might be asked for it. Now I, for my part, believe that the objectivity of a common world in which we all live and die is the necessary assumption of all reasoning and thought. I believe indeed, with Aristotle, that there are primary assumptions which cannot be deduced from other principles. All reasoning assumes the existence of an objective truth which is sought and therefore is assumed to have an independent reality of its own. Every thinking person is conscious of his own identity and the identity of his fellow beings from whom he accepts language and thoughts and to whom he can communicate his own ideas and emotions. Besides, all conceptual thought implies universality, i.e. belief in law and in objective necessity. I can only infer from Socrates being a man that he is mortal when I have assumed that the same thing (in this case man in so far as he is man) in the same conditions will always necessarily behave in the same way. In his book Ghazali attacks the philosophers on twenty points. Except for the last two points which are only slightly touched by Averroës, Averroës follows point for point the arguments Ghazali uses and tries to refute them. Ghazali’s book is badly constructed, it is unsystematic and repetitive. If Ghazali had proceeded systematically he would have attacked first the philosophical basis of the system of the philosophers-namely their proof for the existence of God, since from God, the Highest Principle, everything else is deduced. But the first problem Ghazali mentions is the philosphers’ proof for the eternity of the world. This is the problem which Ghazali considers to be the most important and to which he allots the greatest space, almost a quarter of his book. He starts by saying rather arbitrarily that the philosophers have four arguments, but, in discussing them, he mixes them up and the whole discussion is complicated by the fact that he gives the philosophical arguments and theological counter arguments in such an involved way that the trend is sometimes hard to follow. He says, for instance, page 3, that to the first arguments of the philosophers there are two objections. The first objection he gives on this page, but the second, after long controversy between the philosophers and theologians, on page 32. I will not follow here Ghazali and Averroës point for point in their discussions but will give rather the substance of their principal arguments (for a detailed discussion I refer to my notes). The theory of the eternity of the world is an Aristotelian one. Aristotle was, as he says himself, the first thinker who affirmed that the world in which we live, the universe as an orderly whole, a cosmos, is eternal. All the philosophers before him believed that the world had come into being either from some primitive matter or after a number of other worlds. At the same time Aristotle believes in the finitude of causes. For him it is impossible that movement should have started or can continue by itself. There must be a principle from which all movement derives. Movement, however, by itself is eternal. It seems to me that this whole conception is untenable. If the world is eternal there will be an infinite series of causes and an infinite series of movers; there will be an infinite series, for instance, of fathers and sons, of birds and eggs (the example of the bird and egg is first mentioned in ‘Censorinus, De die natali, where he discusses the Peripatetic theory of the eternity of the world), and we will never reach a first mover or cause, a first father or a first bird. Aristotle, in fact, defends the two opposite theses of Kant’s first antinomy. He holds at the same time that time and movement are infinite and that every causal series must be finite. The contradiction in Aristotle is still further accentuated in the Muslim philosophers by the fact that they see in God, not only as Aristotle did, the First Mover of the movement of the universe, but that they regard Him, under the influence of the Plotinian theory of emanation, as the Creator of the universe from whom the world emanates eternally. However, can the relation between two existing entities qua existents be regarded as a causal one? Can there be a causal relation between an eternally unchangeable God and an eternally revolving and changing world, and is it sense to speak of a creation of that which exists eternally? Besides, if the relation between the eternal God and the eternal movement of the world could be regarded as a causal relati... [ Pobierz całość w formacie PDF ] |
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