The Lessons of History

by Will Durant

After the breakdown of Roman democracy in the class wars of the Gracchi, Marius, and Caesar, Augustus organized, under what in effect was monarchical rule, the greatest achievement in the history of statesmanship—that Pax Romana which maintained peace from 30 B.C. to A.D. 180 throughout an empire ranging from the Atlantic to the Euphrates and from Scotland to the Black Sea. After him monarchy disgraced itself under Caligula, Nero, and Domitian; but after them came Nerva, Trajan, Hadrian, Antoninus Pius, and Marcus Aurelius—“the finest succession of good and great sovereigns,” Renan called them, “that the world has ever had.”53 “If,” said Gibbon, “a man were called upon to fix the period during which the condition of the human race was most happy and prosperous, he would without hesitation name that which elapsed from the accession of Nerva to the death of Marcus Aurelius. Their united reigns are possibly the only period of history in which the happiness of a great people was the sole object of government.”54 In that brilliant age, when Rome’s subjects complimented themselves on being under her rule, monarchy was adoptive: the emperor transmitted his authority not to his offspring but to the ablest man he could find; he adopted this man as his son, trained him in the functions of government, and gradually surrendered to him the reins of power.