“It is seldom,” says Velleius, “that men who have arrived at eminence, have not had powerful coadjutors in steering the course of their fortunes; thus the two Scipios had the two Lælii, whom they set in every respect on a level with themselves; thus the emperor Augustus had Marcus Agrippa, and after him Statilius Taurus. The newness of these men’s families proved no obstruction to their attainment of many consulships and triumphs, and of sacerdotal offices in great numbers. For great affairs demand great co-operators (in small matters, the smallness of assistance does not mar the proceedings), and it is for the interest of the public, that what is necessary for business should be eminent in dignity, and that usefulness should be fortified with influence. In conformity with these examples, Tiberius Cæsar has had, and still has, Ælius Sejanus, a most excellent coadjutor in all the toils of government, a man whose father was chief of the equestrian order, and who, on his mother’s side is connected with some of the most illustrious and ancient families, ennobled by high preferments; who has brothers, cousins, and an uncle, of consular rank; who is remarkable for fidelity in the discharge of his duties, and for ability to endure fatigue, the constitution of his body corresponding with the vigour of his mind; a man of pleasing gravity, and of unaffected cheerfulness; appearing, in the despatch of business, like a man quite at ease; assuming nothing to himself, and hence receiving every honour; always deeming himself inferior to other men’s estimation of him; calm in looks and conversation, but in mind indefatigably vigilant.
“In esteem for Sejanus’ virtues, the judgment of the public has long vied with that of the prince. Nor is it at all new with the senate and people of Rome, to consider the most meritorious as the most noble. The men of old, before the First Punic War, three hundred years ago, exalted to the summit of dignity T. Coruncanius, a man of no family, bestowing on him, besides other honours, the office of chief pontiff; they promoted Spurius Carvilius, a man of equestrian birth, and afterwards Marcus Cato, another new man (not a native citizen, but born at Tusculum), as well as Mummius Achaicus, to consulships, censorships, and triumphs. And they who considered Caius Marius, a man of the most obscure origin, as unquestionably the first in the Roman nation, before his sixth consulship; who had so high an esteem for Marcus Tullius, that he could obtain, almost by his sole recommendation, the highest offices for whomsoever he chose; and who refused nothing to Asinius Pollio, which men of the noblest birth had to obtain with infinite labour, were certainly of opinion that he who possessed the greatest virtues was entitled to the greatest honours. The natural imitation of other men’s examples led Cæsar to make trial of Sejanus, and occasioned Sejanus to bear a share of the burdens of the prince; and induced the senate and people of Rome cheerfully to call to the guardianship of their safety him whom they saw best qualified for the charge.