That a ruler of such noble character as the Roman philosopher Marcus Aurelius should have had for his son and successor a man like Commodus is one of the strange contrasts of history. The succession of Commodus, marking as it does the beginning of the decline of the great empire, may be regarded as one of the most critical moments in the existence of Rome. How folly and cruelty, shameless vice and unbridled ferocity, may be associated in the same character has often been illustrated in the careers of the world's rulers, and nowhere more conspicuously than in some of the Roman emperors; and in the case of Commodus the combination of these qualities led to acts which involved not only the Emperor himself, but also the empire over which he ruled, in fatal consequences.

This vast empire, composed of many different peoples, was under the rule and subject to the caprice of one man. The form of the government imposed practically no checks on his power. With such able emperors as Nerva, Trajan, Hadrian, and Marcus Aurelius the State was safe; but the wise men of Rome had foreseen that a tyrant or weak and inexperienced ruler, under this system, might plunge the empire into confusion and ruin. Yet they had made no provision against such a contingency. In the death of such a ruler and the accession of an abler and juster one lay their only hope of amelioration.

The course of events during the bloody reign of the degenerate Commodus was such as surely to forecast the decline of Roman power and supremacy. In the next hundred years there were twenty-three emperors, thirteen of whom were murdered by their own soldiers or servants—a tragic period of cruelty, licentiousness, and decay.

If a man were called to fix the period in the history of the world during which the condition of the human race was most happy and prosperous, he would, without hesitation, name that which elapsed from the death of Domitian to the accession of Commodus. The vast extent of the Roman Empire was governed by absolute power, under the guidance of virtue and wisdom. The armies were restrained by the firm but gentle hand of four successive emperors, whose characters and authority commanded involuntary respect. The forms of the civil administration were carefully preserved by Nerva, Trajan, Hadrian, and the Antonines, who delighted in the image of liberty, and were pleased with considering themselves as the accountable ministers of the laws. Such princes deserved the honor of restoring the republic, had the Romans of their days been capable of enjoying a rational freedom.

The labors of these monarchs were overpaid by the immense reward that inseparably waited on their success, by the honest pride of virtue, and by the exquisite delight of beholding the general happiness of which they were the authors. A just but melancholy reflection imbittered, however, the noblest of human enjoyments. They must often have recollected the instability of a happiness which depended on the character of a single man. The fatal moment was perhaps approaching when some licentious youth or some jealous tyrant would abuse, to the destruction, that absolute power which they had exerted for the benefit of their people. The ideal restraints of the senate and the laws might serve to display the virtues, but could never correct the vices, of the emperor. The military force was a blind and irresistible instrument of oppression, and the corruption of Roman manners would always supply flatterers eager to applaud, and ministers prepared to serve, the fear or the avarice, the lust or the cruelty, of their masters.

These gloomy apprehensions had been already justified by the experience of the Romans. The annals of the emperors exhibit a strong and various picture of human nature, which we should vainly seek among the mixed and doubtful characters of modern history. In the conduct of those monarchs we may trace the utmost lines of vice and virtue; the most exalted perfection, and the meanest degeneracy of our own species.

The mildness of Marcus Aurelius, which the rigid discipline of the Stoics was unable to eradicate, formed, at the same time, the most amiable, and the only defective, part of his character. His excellent understanding was often deceived by the unsuspecting goodness of his heart. Artful men, who study the passions of princes, and conceal their own, approached his person in the disguise of philosophic sanctity, and acquired riches and honors by affecting to despise them. His excessive indulgence to his brother,[46] his wife, and his son exceeded the bounds of private virtue, and became a public injury, by the example and consequences of their vices.

Faustina, the daughter of Pius and the wife of Marcus, has been as much celebrated for her gallantries as for her beauty. The grave simplicity of the philosopher was ill-calculated to engage her wanton levity, or to fix that unbounded passion for variety which often discovered personal merit in the meanest of mankind. The Cupid of the ancients was, in general, a very sensual deity; and the amours of an empress, as they exact on her side the plainest advances, are seldom susceptible of much sentimental delicacy. Marcus was the only man in the empire who seemed ignorant or insensible of the irregularities of Faustina, which, according to the prejudices of every age, reflected some disgrace on the injured husband. He promoted several of her lovers to posts of honor and profit, and, during a connection of thirty years, invariably gave her proofs of the most tender confidence and of a respect which ended not with her life. In his Meditations he thanks the gods, who had bestowed on him a wife so faithful, so gentle, and of such a wonderful simplicity of manners. The obsequious senate, at his earnest request, declared her a goddess. She was represented in her temples with the attributes of Juno, Venus, and Ceres; and it was decreed that, on the day of their nuptials, the youth of either sex should pay their vows before the altar of their chaste patroness.

The monstrous vices of the son have cast a shade on the purity of the father's virtues. It has been objected to Marcus that he sacrificed the happiness of millions to a fond partiality for a worthless boy; and that he chose a successor in his own family rather than in the empire. Nothing, however, was neglected by the anxious father, and by the men of virtue and learning whom he summoned to his assistance, to expand the narrow mind of young Commodus, to correct his growing vices, and to render him worthy of the throne for which he was designed. But the power of instruction is seldom of much efficacy, except in those happy dispositions where it is almost superfluous. The distasteful lesson of a grave philosopher was, in a moment, obliterated by the whisper of a profligate favorite; and Marcus himself blasted the fruits of this labored education by admitting his son, at the age of fourteen or fifteen, to a full participation of the imperial power. He lived but four years afterward; but he lived long enough to repent a rash measure which raised the impetuous youth above the restraint of reason and authority.

Most of the crimes which disturb the internal peace of society are produced by the restraints which the necessary but unequal laws of property have imposed on the appetites of mankind by confining to a few the possession of those objects that are coveted by many. Of all our passions and appetites the love of power is of the most imperious and unsociable nature, since the pride of one man requires the submission of the multitude. In the tumult of civil discord, the laws of society lose their force, and their place is seldom supplied by those of humanity. The ardor of contention, the pride of victory, the despair of success, the memory of past injuries, and the fear of future dangers all contribute to inflame the mind and to silence the voice of pity. From such motives almost every page of history has been stained with civil blood; but these motives will not account for the unprovoked cruelties of Commodus, who had nothing to wish and everything to enjoy.