Britannica Sources used in this answer

Why is Marcus Aurelius called a philosopher king?

Created from Britannica articles using AI. AI can make mistakes, so verify using Britannica articles.

Bronze equestrian statue of Marcus Aurelius with his right arm raised, seated on a horse, at Piazza del Campidoglio in Rome, Italy. — Marcus Aurelius Marcus Aurelius, bronze equestrian statue in the Piazza del Campidoglio, Rome.

Marcus Aurelius is called a philosopher king primarily because he was a Roman emperor who actively practiced and recorded Stoic philosophical reflections while governing the Roman Empire.12

While the concept of the "philosopher king" originated in Plato’s Republic—which argued that cities would only find peace when political power and philosophy coincided—Marcus Aurelius’s application of the term differed slightly. For him, the ideal was not that only philosophers should rule, but that those who hold the responsibilities of kingship should also be philosophers.3

His reputation is largely cemented by his work, Meditations, a collection of personal notes written during his military campaigns and administrative duties. These writings demonstrate his commitment to Stoic moral tenets, such as the belief that the cosmos is governed by intelligence and that a ruler must remain dedicated to duty and service despite the transience of the physical world. By integrating philosophical inquiry into his role as emperor, he became the historical archetype for the ruler who governs with wisdom and self-restraint.243