Meanwhile, the Parthian king, Vologeses, when he heard of Corbulo's achievements and of a foreign prince, Tigranes, having been set over Armenia, though he longed at the same time to avenge the majesty of the Arsacids, which had been insulted by the expulsion of his brother Tiridates, was, on the other hand, drawn to different thoughts as he reflected on the greatness of Rome, and felt reverence for a hitherto unbroken treaty. Naturally irresolute, he was now hampered by a revolt of the Hyrcanians, a powerful tribe, and by several wars arising out of it. Suddenly, as he was wavering, fresh and further tidings of disgrace goaded him to action. Tigranes, quitting Armenia, had ravaged the Adiabeni, a people on its border, too extensively and continuously for mere plundering raids. The chief men of the tribes were indignant at having fallen into such contempt that they were victims to the inroads, not indeed of a Roman general, but of a daring hostage, who for so many years had been numbered among slaves. Their anger was inflamed by Monobazus, who ruled the Adiabeni, and repeatedly asked what protection he was to seek and from what quarter—"Already," he said, "Armenia has been given up, and its borders are being wrested from us, and unless the Parthians help us, we shall find that subjection to Rome is lighter for those who surrender than for the conquered." Tiridates too, exile as he was from his kingdom, by his silence or very moderate complaints made the deeper impression. "It is not," he urged, "by weak inaction that great empires are held together; there must be the struggle of brave men in arms; might is right with those who are at the summit of power. And though it is the glory of a private house to keep its own, it is the glory of a king to fight for the possessions of others."
Complete Works of Tacitus. Tacitus. Alfred John Church. William Jackson Brodribb. Sara Bryant. edited for Perseus. New York. : Random House, Inc. Random House, Inc. reprinted 1942.
