In Mencius’ thought, *li* (禮) is most fundamentally the realm of ritual propriety, the established forms of correct behavior that shape social life. It encompasses ceremonial practices, etiquette, and norms that govern how one relates to parents, rulers, elders, and others in the community. Yet these forms are not mere social conventions; they are the patterned expressions through which moral life becomes visible and concrete. *Li* thus serves as a principle of order, structuring relationships within family, community, and state so that harmony and stability can emerge.

At the same time, Mencius insists that *li* must arise from an inner moral core rather than from empty formalism. Rituals and proper conduct have genuine value only when they flow from the heart-mind shaped by benevolence (*ren*), righteousness (*yi*), and the innate moral tendencies he describes as the beginnings of virtue. When practiced in this spirit, *li* becomes the external manifestation of authentic moral feeling—especially the sense of shame and aversion to wrongdoing—and not a hollow performance. In this way, *li* is both an expression and a test of the sincerity of one’s moral life.

Because of this inner–outer dynamic, *li* functions as a crucial means of self-cultivation in Mencian Confucianism. By engaging in proper rituals and observing appropriate conduct, individuals refine their character and allow the “sprouts” of their inborn goodness to grow into mature virtue. The disciplined practice of *li* educates desire, clarifies relationships, and helps align personal behavior with the ethical ideals of benevolence and righteousness. When rooted in genuine moral intention, these ritual forms not only shape the individual but also sustain a just and harmonious social order.