 and this influence also extended to Korea, becoming deeply rooted there. Zhu’s compendium on Neo-Confucian thought, Jinsilu (近思錄) [Reflections on Things at Hand], written with Lu Zu-qian (1137–1181), became the handbook on this great philosophical synthesis, and was integral to the Korean development of those ideas. Zhu focused on self-cultivation, a necessary ingredient in Confucian sagehood that became central to Korean’s interpretation of those ideas (Chan 1987: 122–124; Tillman 1992: 114–118).