Monday, January 26, 2026

Choosing a Successor

Marcus Aurelius occupies a peculiar moral position in Western intellectual history. He is praised as the philosopher-emperor, the rare ruler whose private writings articulate restraint, humility, and cosmic acceptance while his public life unfolded amid plague, war, and administrative strain. Meditations continues to function as a manual for ethical composure under pressure. Yet hovering over this admiration is an uncomfortable historical fact: Marcus Aurelius raised and appointed Commodus, a son whose reign nearly unraveled the Roman imperial system. This tension is rarely confronted directly. The question is not simply why Commodus was unfit, but why Marcus is so consistently insulated from responsibility for having made him emperor.

Part of the answer lies in how Marcus Aurelius has been framed—as a moral subject rather than a political agent. Stoicism, particularly in its Roman imperial form, privileges intention, inner disposition, and assent over outcomes. Marcus is judged by the serenity and rigor of his inner life rather than by the consequences of his dynastic decisions. This ethical emphasis subtly displaces responsibility: failure becomes a matter of fate or external circumstance rather than of judgment or governance. The son’s corruption is treated as contingency, not causation.

Psychologically, this reflects a familiar bias. Moral evaluation often favors perceived sincerity over structural effect. Marcus appears earnest, reflective, self-critical; Commodus appears theatrical, cruel, impulsive. The contrast encourages moral compartmentalization. One becomes a model of virtue, the other an aberration. Yet from a developmental and political standpoint, this division is artificial. Children do not emerge ex nihilo. Rulers are not appointed by accident. Commodus was not an unforeseen anomaly imposed upon Marcus; he was shaped within Marcus’s household and elevated by Marcus’s will.

Roman imperial ideology compounds this evasion. By the second century, the principate had drifted from the adoption-based meritocracy idealized under the “Five Good Emperors” toward hereditary succession. Marcus was the first in that sequence to pass power directly to his biological son. This was not an inevitability; it was a choice. He had precedents for adoption. He had competent generals and administrators at hand. Yet he reinstated dynastic continuity at precisely the moment when the empire’s complexity demanded restraint from hereditary risk. The philosophical emperor made a deeply conservative political move.

Why, then, is Marcus not judged more harshly? One reason is narrative convenience. Western intellectual tradition has a limited supply of rulers who can be credibly described as reflective, humane, and philosophically serious. Marcus fills that role too neatly to be destabilized. Criticizing him too sharply threatens the comforting idea that wisdom and power can coexist without remainder. Commodus becomes the scapegoat that preserves the fantasy.

There is also the influence of Meditations itself. The text is radically inward-facing. Marcus writes to discipline his own responses, not to justify policy. The work offers no sustained reflection on governance, succession, or institutional design. This omission is often interpreted charitably, as humility. It can also be read as ethical narrowing. By treating political power as morally external—something to be endured rather than shaped—Marcus exempts himself from examining how his authority structures the future.

From the standpoint of moral psychology, this reflects a misalignment between personal virtue ethics and systems-level responsibility. Stoicism excels at regulating affect, limiting reactivity, and sustaining dignity under duress. It is less well-equipped to address the generational consequences of institutional decisions. Marcus trains himself to accept what he cannot control, yet succession was precisely something he could control. His failure lies not in ignorance of Commodus’s flaws—ancient sources suggest he was aware—but in overestimating the corrective power of moral example and underestimating the inertia of character once authority is absolute.

Modern leadership theory would describe this as a category error: confusing personal mentorship with structural constraint. Commodus did not merely inherit a father; he inherited unchecked power. No amount of Stoic instruction can substitute for institutional safeguards. Marcus’s belief that philosophical formation could compensate for political exposure reveals a quiet idealism at odds with his otherwise sober worldview.

There is also an emotional dimension that scholarship often avoids. Marcus was a father who had lost many children. Commodus survived when others did not. Psychological research on parental attachment suggests that scarcity intensifies investment. In this light, Marcus’s decision appears less philosophical than human. The emperor who preached impermanence clung to continuity. Stoic composure did not prevent paternal bias; it may have rationalized it.

Commodus’s reign exposed the consequences of this miscalculation. Governance collapsed into spectacle. Violence became performative. The symbolic center of imperial authority dissolved into narcissistic excess. That collapse retroactively implicates Marcus, not as a villain, but as a thinker whose ethical framework lacked adequate traction at the level of political reproduction.

Yet the tradition remains reluctant to integrate this failure into Marcus’s legacy. Instead, it isolates Commodus as pathology and preserves Marcus as ideal. This reflects a broader cultural habit: separating ethics from power in order to salvage moral exemplars. We prefer philosophers who fail privately rather than publicly. Marcus failed publicly, but his failure is deferred onto his son.

What emerges, then, is not a condemnation of Marcus Aurelius, but a reframing. He was not a saint undone by fate, nor a naïf betrayed by heredity. He was a ruler whose ethical system privileged inner sovereignty over institutional foresight. His blindness was not moral but structural. He governed himself more rigorously than he governed succession.

Seen this way, Marcus becomes newly relevant. Modern leaders face analogous temptations: to substitute personal virtue for systemic design, to trust character where constraints are required, to mistake sincerity for adequacy. The lesson of Commodus is not that philosophy is useless, but that it is insufficient when detached from political realism.

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Choosing a Successor

Marcus Aurelius occupies a peculiar moral position in Western intellectual history. He is praised as the philosopher-emperor, the rare ruler...