The school of Bagdad, to which Muammar seems to belong, was conceptualist. With the exception of the most general predicates,—those of Being and Becoming, it made Universals subsist only as notions or concepts. Abu Hashim of Basra († 933) stood nearer to Realism. The attributes of God, as well as Accidents and Genus-notions in general, were regarded by him as something in a middle position between Being and Not-Being: he called them Conditions or Modes. He designated Doubt as a requisite in all knowing. A simple Realist he was not. Mutazilite thinkers indulged in dialectic quibbling even about ‘Not-Being’. They argued that Not-Being, as well as Being, must come to possess a kind of reality, seeing that it may become the subject of thought: at least man tries to think of ‘Nothing’ rather than not think at all. 11. In the 9th century several dialectic systems had been formed in the contest against the Mutazilites, one of which, viz. the Karramite system, held its ground till long after the 10th century. There arose, however, from the ranks of the Mutazilites a man whose mission it was to reconcile antagonistic views, and who set up that doctrinal system which was acknowledged as orthodox first in the East, and, later, throughout the whole of Islam. This was Al-Ashari (873–935), who understood how to render to God the things that are God’s, and to man the things that are man’s. He rejected the rude anthropomorphism of the Antimutazilite dialecticians, and set God high above all that is bodily and human, while he left to the Deity his omnipotence, and his universal agency. With him Nature lost all her efficaciousness; but for man a certain distinction was reserved, consisting in his being able to give assent to the works which were accomplished in him by God, and to claim these as his own. Nor was Man’s sensuous-spiritual being interfered with: He was permitted to hope for the resurrection of the body and the beholding of God. As regards the Koranic revelation, Ashari distinguished between an eternal Word in God, and the Book as we possess it, which latter was revealed in Time. In the detailed statement of his doctrines Ashari showed no originality in any way, but merely arranged and condensed the material given him,—a proceeding which could not be carried out without discrepancies. The main thing, however, was that his Cosmology, Anthropology and Eschatology did not depart too far from the text of the Tradition for the edification of pious souls, and that his theology, in consequence of a somewhat spiritualized conception of God was not altogether unsatisfactory even to men of higher culture.