His career as poet and scholar dates from the time he returned from Baghdad. This, so far as is known, was the last journey he made; and his home became henceforth his earthly prison. He calls himself "A double-fettered Captive," [9] his solitude being the one and his blindness the other. Like most of the scholars of his age, in the absence of regular educational institutions, with perhaps one or two exceptions, he had to devote a part of his time to the large number of pupils that flocked to Ma'arrah from all parts of Asia Minor, Arabia, and India. Aside from this, he dictated to his numerous amanuenses on every possible and known subject. He is not only a poet of the first rank, but an essayist, a literary critic, and a mathematician as well. Everything he wrote was transcribed by many of his admirers, as was the fashion then, and thus circulated far and near. Nothing, however, was preserved but his Diwans, his Letters and the Epistle of Forgiveness, [10] of which I shall yet have occasion to speak. [11] His reputation as poet and scholar had now, after his return from Baghdad, overleaped the horizons, as one writer has it. Honors were conferred upon him successively by the rulers and the scholars of his age. His many noted admirers were in constant communication with him. He was now looked upon as "the master of the learned, the chief of the wise, and the sole monarch of the bards of his century." Ma'arrah [12] became the Mecca of every literary aspirant; ambitious young scholars came there for enlightenment and inspiration. And Abu'l-Ala, although a pessimist, received them with his wonted kindness and courtesy. He imparted to them what he knew, and told them candidly what he would not teach, since, unlike other philosophers, he was not able to grasp the truth, nor compass the smallest of the mysteries of creation. In his latter days, youthful admirers sought his blessing, which he, as the childless father of all, graciously conferred, but with no self-assumed spiritual or temporal authority. For thirty years he remained a vegetarian, living the life of an ascetic. [13] This mode of living led his enemies to accuse him of renouncing Islam and embracing Brahminism, one of the tenets of which forbids the slaughter of animals. The accusation was rather sustained by the dispassionate attitude he held towards it, and, furthermore, by his vehement denunciation of the barbarous practice of killing animals for food or for sport.