In looking at the second century, we see a total difference in the expression, though the main features continue unchanged. There is still the central power at Rome, the same dependence everywhere else; but the central power is beneficent and wise. As if tired of the hereditary rule of succession which had ended in such a monster as Domitian, the world took refuge in a new system of appointing its chiefs, and perhaps thought it a recommendation of each successive emperor that he had no relationship to the last. We shall accordingly find that, after this period, the hereditary principle is excluded. It was remarked that, of the twelve first Cæsars, only two had died a natural death--for even in the case of Augustus the arts of the poisoner were suspected--and those two were Vespasian and Titus, men who had no claim to such an elevation in right of lofty birth. Birth, indeed, had ceased to be a recommendation. All the great names of the Republic had been carefully rooted out. Few people were inclined to boast of their ancestry when the proof of their pedigree acted as a sentence of death; for there was no surer passport to destruction in the times of the early emperors than a connection with the Julian line, or descent from a historic family. No one, therefore, took the trouble to inquire into the genealogy of Nerva, the old and generous man who succeeded the monster Domitian. [A.D. 96.] His nomination to the empire elevated him at once out of the sphere of these inquiries, for already the same superstitious reverence surrounded the name of Augustus which spreads its inviolable sanctity on the throne of Eastern monarchs. Whoever sits upon that, by whatever title, or however acquired, is the legitimate and unquestioned king. No rival, therefore, started up to contest the position either of Nerva himself, or of the stranger he nominated to succeed him. [A.D. 102.] Men bent in humble acquiescence when they knew, in the third year of this century, that their master was named Trajan,--that he was a Spaniard by birth, and the best general of Rome. For eighty years after that date the empire had rest. Life and property were comparatively secure, and society flowed on peaceably in deep and well-ascertained channels. A man might have been born at the end of the reign of Domitian, and die in extreme old age under the sway of the last of the Antonines, and never have known of insecurity or oppression-- "Malice domestic, foreign levy, nothing Could touch him farther!" No wonder those agreeable years were considered by the fond gratitude of the time, and the unavailing regrets of succeeding generations, the golden age of man. Nerva, Trajan, Adrian, Antoninus Pius, Marcus Aurelius Antoninus--these are still great names, and are everywhere recognised as the most wonderful succession of sovereigns the world has ever seen. They are still called the "Good Emperors," the "Wise Rulers."