本文擬以探討李退溪與李栗谷的「人心道心」之說與朱子所理解的「人心道心」之差異。退溪認為道心人心之概念可以與「四端七情」進行類比，而栗谷則是重新詮釋了人心道心之思想，提出了「人心道心相為終始」之說。然而退溪與栗谷的「人心道心」之思想都與朱子所理解的有差異，即退溪的人心道心會造成「二心」的問題，但朱子理解的人心道心只是「一心」；而栗谷的人心道心相為終始之說，雖無「二心」的問題，但因為栗谷的人心道心不能並存，故而可能走向「禁慾主義」，此已背於朱子主張的人心道心之說。 The article aims to explore the difference between Yi Toegye(李退溪) and Yi Yulgok(李栗谷)'s theory of “renxindoxin”(人心道心) and Zhu Zi(朱子)'s understanding of “renxindoxin”. Yi Toegye believes that the concept of renxindoxin can be compared with the “four buddings and seven feelings”(四端七情), while Yi Yulgok reinterprets the thought of renxindoxin, and puts forward the theory that “renxindoxin are the beginning and end.”However, the thoughts of “renxindoxin”in Yi Toegye and Yi Yulgok are different from what Zhu Zi understood, that is, Yi Toegye's renxindoxin will cause the problem of “two hearts”, but Zhu Zi's understanding of renxindoxin is only “one heart”; As for Yi Yulgok's renxindoxin as the beginning and end, although there is no problem of “two hearts”, because Yi Yulgok's renxindoxin cannot coexist, it may move towards “Asceticism.”This is contrary to the renxindoxin advocated by Zhu Zi Say.
