Duncan Black MacDonald, Development of Muslim Theology…
“ Al-Mansur, though a bloody tyrant, had been a great statesman and had known how to bend people and things quietly to his will. He had sketched the firm outlines of a policy for the Abbasids, but had been cautious how he proclaimed his programme to the world. The world would come to him in time, and he could afford to wait and work in the dark. He knew, above all, that no people would submit to be school-mastered into the way in which they should go. Al-Ma’mun, for all his genius, was at heart a school-master. He was an enlightened patron of an enlightened Islam. ”
