This book is a collection of Professor Chen Lai's essays on Zhu Xi Studies over the past decade. It examines the textual development and variant editions of Zhu Xi's works such as Ren Shuo (Treatise on Benevolence), Kezhai Ji (Record of Self-Restraint), and Taiji Jieyi (Explanation of the Supreme Ultimate), tracing the evolution of crucial philosophical ideas therein. The study systematically analyzes key Confucian concepts in Zhu Xi's Neo-Confucian framework, including the "Four Cardinal Virtues" (sī dé 四德), "moral shame and aversion" (xiū wù 羞恶), and the doctrines of "manifested/unmanifested states" (yǐfā wèifā 已发未发), featuring critical reflections on contemporary Zhu Xi Studies and its modern significance, and presenting a scholar's profound understanding and expressions of his own academic mission.