"It must be admitted," he said, "after what we have just heard, that men of letters are, as a rule, very little acquainted with what concerns the government of a country,--not that government of pure speculation, which is nothing more than a phantom, vanishing the nearer we approach to it, but the practical government which consists in keeping men within the sphere of their practical duties. With all their pretence of knowledge, they are, in this matter, densely ignorant. They can tell you by heart everything which has happened in the past, back to the most remote period, but they are, or seem to be, ignorant of what is being done in these later days, of what is passing under their very eyes. Incapable of discerning that the thing which was formerly suitable would be wholly out of place to-day, they would have everything arranged in exact imitation of what they find written in their books." He went on to denounce the men of learning as a class uninfluenced by the spirit of existing affairs and as enemies of the public weal, and concluded by saying, "Now or never is the time to close the mouths of these secret enemies, to place a curb upon their audacity." He spoke the sentiments of the emperor, who had probably already determined upon his course of action. Having no regard for books himself, and looking upon them as the weapons of his banded foes, he issued the memorable order that all the books of the empire should be destroyed, making exception only of those that treated of medicine, agriculture, architecture, and astronomy. The order included the works of the great Confucius, who had edited and condensed the more ancient books of the empire, and of his noble disciple Mencius, and was of the most tyrannical and oppressive character. All books containing historical records, except those relating to the existing reign, were to be burned, and all who dared even to speak together about the Confucian "Book of Odes" and "Book of History" were condemned to execution. All who should even make mention of the past, so as to blame the present, were, with all their relatives, to be put to death; and any one found, after thirty days, with a book in his possession was to be branded and sent to work for four years on the Great Wall. Hoangti did not confine himself to words. The whole empire was searched for books, and all found were burned, while large numbers of the literati who had disobeyed the edict were arrested, and four hundred and sixty of them were buried alive in a great pit dug for that purpose.