It is only by doing something of that sort that we can at all realize the connection between the settlement of the shepherds, the Rome of the Cæsars, and the desolate and scantily populated fighting ground of the Barons, upon which, with the Renascence, the city of the later Popes began to rise under Nicholas the Fifth. And lastly, without a little of such general knowledge it would be utterly impossible to call up, even faintly, the lives of Romans in successive ages. Read the earlier parts of Livy's histories and try to picture the pristine simplicity of those primeval times. Read Cæsar's Gallic War, the marvellously concise reports of the greatest man that ever lived, during ten years of his conquests. Read Horace, and attempt to see a little of what he describes in his good-natured, easy way. Read the correspondence of the younger Pliny when proconsul in Bithynia under Trajan, and follow the extraordinary details of administration which, with ten thousand others, the Spanish Emperor of Rome carried in his memory, and directed and decided. Take Petronius Arbiter's 'novel' next, the Satyricon, if you be not over-delicate in taste, and glance at the daily journal of a dissolute wretch wandering from one scene of incredible vice to another. And so on, through the later writers; and from among the vast annals of the industrious Muratori pick out bits of Roman life at different periods, and try to piece them together. At first sight it seems utterly impossible that one and the same people should have passed through such social changes and vicissitudes. Every educated man knows the main points through which the chain ran. Scholars have spent their lives in the attempt to restore even a few of the links and, for the most part, have lost their way in the dry quicksands that have swallowed up so much.