It thus appears that, over and above their higher and finer excellences, the Roman poets have this additional source of interest, that, more than any other authors in the vigorous times of antiquity, they satisfy the modern curiosity in regard to personal character and experience. These poets have themselves left the most trustworthy record of their happiest hours and most real interests; of their standard of conduct, their personal worth, and their strength of affection; of the studies and the occupations in which they passed their lives, and of the spirit in which they awaited the certainty of their end. It remains to say a few words in regard to the historical progress of this branch of literature. The history of Roman poetry may be divided into four great periods:-- I. The age of Naevius, Ennius, Lucilius, etc., extending from about B.C. 240 till about B.C. 100: II. The age of Lucretius and Catullus, whose active poetical career belongs to the last age of the Republic, the decennium before the outbreak of the Civil War between Caesar and Pompey: III. The Augustan age: IV. The whole period of the Empire after the time of Augustus. The poetry of each of these periods is distinctly marked in form, style, and character. There is evidently a great advance in artistic accomplishment and in poetical feeling, from the rude cyclopean remains of the annals of Ennius to the stately proportions and elaborate workmanship of the Aeneid. Yet this advance was attended with some loss as well as gain. With infinitely less accomplishment and less variety, the older writers show signs of a robuster life and a more vigorous understanding than some at least of those who adorn the Augustan era. They endeavoured to work in the spirit of the great masters, who had made the most heroic passions and most serious interests of men the subject of their art. They were men also of the same fibre as the chief actors on the stage of public affairs, living with them in familiar friendship, while at the same time maintaining a close sympathy with popular feeling and the national life. Their fragments are thus, apart from their intrinsic merits, especially valuable as the contemporary language of that great time, and as giving some expression to the strength, the dignity, and the freedom which were stamped upon the old Republic.