What is an emotion? Recent studies of cultural psychology suggest that there is no universally shared way of drawing the boundaries around the domain of emotion. In early Chinese philosophy, the abstract category of emotion that superordinates joy, anger, and sadness is sometimes identified with the term qing. This paper extracts, crystallizes, and examines the conception of qing from the excavated “Xing Zi Ming Chu” (XZMC) text, the most important philosophical work on emotion from early China. The paper argues that (...) XZMC presents a philosophically profound way of thinking about emotion, focusing on its normative role, cognitive features, and functional plasticity. Moreover, the paper explores how the ancient view offers a critical lens to reassess the prevailing assumption that emotions are first and foremost internal states with phenomenal and/or intentional characteristics. The paper highlights the potential for early Chinese philosophy to enrich contemporary conceptualization of emotion and vice versa, suggesting a more cross-cultural approach to philosophizing the category of emotion. (shrink)