Inspired by early Confucian texts such as the Analects , Mencius , and Xunzi , defenders of Confucian role ethics argue that persons are constituted by their social roles and relationships. However, this has the puzzling implication that persons cannot survive changes in social roles and relationships. This paper proposes ways to understand this claim by appealing to the notions of essence, material constitution, and four-dimensionalism. In particular, it will be suggested that role ethicists should distinguish biological humans from persons and should say either that (i) persons are materially constituted by biological humans, or that (ii) persons are four-dimensional objects that merely overlap with biological humans. There has thus far not been much contact between early Chinese philosophy and contemporary metaphysics in this vein. A secondary goal of this paper is to demonstrate that views in early Chinese philosophy can be examined within frameworks from contemporary metaphysics, and furthermore, that the results include novel theses not yet recognized in contemporary metaphysics.