Abstract

“Heart-mind” has almost become the standard English translation of Mengzi’s concept of xin 心. However, it remains largely unsettled (1) on what basis xin can be regarded as possessing a mind aspect that allows it to function as a faculty that both feels and thinks, and (2) what role this mind aspect of xin plays in Mengzi’s ethics, which revolves around character formation. This paper aims to address these two questions through a detailed analysis of the original text and a critical review of the relevant secondary literature. First, the paper argues that it is through the ability to si, which literally means “to think,” “to reflect,” and “to contemplate,” that xin can be understood as both an emotional and a rational faculty. Then, the paper demonstrates that si has the functions of being “attentive,” “associative,” “evaluative,” and “corrective,” which enable it to contribute to the process of self-cultivation by identifying, intensifying, and approving primitive moral feelings in an appropriate and self-regulating way.