To characterize briefly the methods of the Mutakallimun, Maimonides continues, I would say that the first among them, the Greeks and the Mohammedans, did not follow reality, but adopted principles which were calculated to help them in defending their religious theses, and then interpreted reality to suit their preconceived notions. The later members of the school no longer saw through the motives of their predecessors and imagined their principles and arguments were _bona fide_ refutations of philosophical opinions. On examination of their works I found, he continues, that with slight differences they are all alike. They do not put any trust in reality and nature. For, they say, the so-called laws of nature are nothing more than the order of events to which we are accustomed. There is no kind of necessity in them, and it is conceivable they might be different. In many cases the Mutakallimun follow the imagination and call it reason. Their method of procedure is as follows. They first state their preliminary principles, then they prove that the world is "new," _i. e._, created in time. Then they argue that the world must have had an originator, and that he is one and incorporeal. All the Mutakallimun follow this method, and they are imitated by those of our own people who follow in their footsteps. To this method I have serious objections, continues Maimonides, for their arguments in favor of the creation of the world are not convincing unless one does not know a real demonstration from a dialectical or sophistic. The most one can do in this line is to invalidate the arguments for eternity. But the decision of the question is by no means easy, as is shown by the fact that the controversy is three thousand years old and not yet settled. Hence it is a risky policy to build the argument for the existence of God on so shaky a foundation as the "newness" of the world. The best way then, it seems to me, is to prove God's existence, unity and incorporeality by the methods of the philosophers, which are based upon the eternity of the world. Not that I believe in eternity or that I accept it, but because on this hypothesis the three fundamental doctrines are validly demonstrated. Having proved these doctrines we will then return to the problem of the origin of the world and say what can be said in favor of creation.[263]