Before the works of Cicero, no attempts worth considering had been made for using the Latin tongue in philosophical subjects. The natural stubbornness of the language conspired with Roman haughtiness to prevent this application.[139] The Epicureans, indeed, had made the experiment, but their writings were even affectedly harsh and slovenly,[140] and we find Cicero himself, in spite of his inexhaustible flow of rich and expressive diction, making continual apologies for his learned occupations, and extolling philosophy as the parent of everything great, virtuous, and amiable.[141] Yet, with whatever discouragement his design was attended, he ultimately triumphed over the pride of an unlettered people, and the difficulties of a defective language. He was indeed possessed of that first requisite for eminence, an enthusiastic attachment to the studies he was recommending. But, occupied as he was with the duties of a statesman, mere love of literature would have availed little, if separated from that energy and breadth of intellect by which he was enabled to pursue a variety of objects at once, with equally perserving and indefatigable zeal. "He suffered no part of his leisure to be idle," says Middleton, "or the least interval of it to be lost; but what other people gave to the public shows, to pleasures, to feasts, nay, even to sleep and the ordinary refreshments of nature, he generally gave to his books, and the enlargement of his knowledge. On days of business, when he had anything particular to compose, he had no other time for meditating but when he was taking a few turns in his walks, where he used to dictate his thoughts to his scribes who attended him. We find many of his letters dated before daylight, some from the senate, others from his meals, and the crowd of his morning levee."[142] Thus he found time, without apparent inconvenience, for the business of the State, for the turmoil of the courts, and for philosophical studies. During his Consulate he delivered twelve orations in the Senate, Rostrum, or Forum. His Treatises _de Oratore_ and _de Republica_, the most finished perhaps of his compositions, were written at a time when, to use his own words, "not a day passed without his taking part in forensic disputes."[143] And in the last year of his life he composed at least eight of his philosophical works, besides the fourteen orations against Antony, which are known by the name of Philippics.