Ibn Bajja was a close disciple of al-Farabi, who is to be regarded as the spiritual father of the later Arabic philosophy; Ibn Sina practically falls out. In logic, physics, and metaphysics he followed al-Farabi closely. But we can see how the times have moved and the philosophies with them. The essential differences have appeared and Ibn Bajja can no longer, with a good conscience, appear as a pious Muslim. The Sufi strain also is much weaker. The greatest joy and the closest truth are to be found in thought, and not in the sensuous ecstasies of the mystic. The intellect is the highest element in man’s being, but is only immortal as it joins itself to the one Active Intellect, which is all that is left of God. Here we have the beginning of the doctrine which, later, under the name of Averroism and pampsychism ran like wild-fire through the schools of Europe. Further, only by the constant exercise of its own functions can the intellect of man be thus raised. He must live rationally at all points; be able to give a reason for every action. This may compel him to live in solitude; the world is so irrational and will not suffer reason. Or some of the disciples of reason may draw together and form a community where they may live the calm life of nature and of the pursuit of knowledge and self-development. So they will be at one with nature and the eternal, and far removed from the frenzied life of the multitude with its lower aims and conceptions. It is easy to see how the iron of a fight against overwhelming odds had entered this soul. Only the friendship of some of the Murabit princes saved him; but he died in the end, says a story, by poison. With the next names we find ourselves at a Muwahhid court, and there the atmosphere has changed. It is evident that, whatever might be the temper of the people, the chiefs of the Muwahhids viewed philosophy with no disfavor. Their problem, as in the case of the Fatimids, seems rather to have been how much the people might be taught with safety. Their solution of the problem—here we proceed on conjecture, but the basis is tolerably sound—was that the bulk of the people should be taught nothing but the literal sense of the Qur’an, metaphors, anthropomorphisms and all; that the educated lay public, which had already some inkling of the facts, should be assured that there was really no difference between philosophy and theology—that they were two phases of one truth; and that the philosophers should have a free hand to go on their own way, always provided that their speculations did not spread beyond their own circle and agitate the minds of the commonalty. It was a beautiful scheme, but like all systems of obscurantism it did not work. On the one hand, the people refused to be blindfolded, and, on the other, philosophy died out of inanition.