Edward Gibbon, The Decline and Fall of the Roman Empire (Chp. 24):
The voluminous writings of Libanius still exist; for the most part, they are the vain and idle compositions of an orator, who cultivated the science of words; the productions of a recluse student, whose mind, regardless of his contemporaries, was incessantly fixed on the Trojan war and the Athenian commonwealth. Yet the sophist of Antioch sometimes descended from this imaginary elevation; he entertained a various and elaborate correspondence; he praised the virtues of his own times; he boldly arraigned the abuse of public and private life; and he eloquently pleaded the cause of Antioch against the just resentment of Julian and Theodosius. It is the common calamity of old age, to lose whatever might have rendered it desirable; but Libanius experienced the peculiar misfortune of surviving the religion and the sciences, to which he had consecrated his genius. The friend of Julian was an indignant spectator of the triumph of Christianity; and his bigotry, which darkened the prospect of the visible world, did not inspire Libanius with any lively hopes of celestial glory and happiness.