Marcus Aurelius addresses himself as sociable by nature, as someone made to belong to a political community, and as a citizen of the cosmos. The good life for him consists in obeying the gods and cooperating with his fellow citizens in service of the common interest. His fellow citizens are all beings endowed with reason, and as a human he cares for all other people, whoever they may be. The Meditations demonstrate detailed knowledge and agreement with the conceptual foundations of Stoic cosmopolitanism, but specific approaches can be identified. Marcus underscores the organismic and egalitarian nature of the cosmic community and often gives a functional account of his status as a part of the cosmos, while at the same time also suggesting a hierarchical account of degrees of sociability. His rule as emperor he conceives as a personal challenge to live up to the model of his predecessor, Antoninus Pius, also sharing the latter’s conservativism and traditionalism. Marcus’ Stoicism is more apparent in his quest for sincere and truly loving sociability, a striving that finds its limits in the aversion and disappointment Marcus often seems to experience with regard to those around him.