於本文中，筆者擇取《老子想爾注》、《無為清靜長生真人至真語錄》、《清和真人北游語錄》等書，作為討論的文本資料。《老子想爾注》展現了神仙道教的思想，劉處玄與尹志平則是金元時的全真道人物。天師道與全真道，同屬宗教性之道教團體，兩相對照，劉、尹之說實展現出一種兼容外教的思維。筆者欲藉由對照諸說，考察雙方對《老子》義理的詮釋，其中的異同處，實與彼此自身義理體系有關。

In this essay, I present a discussion about three scholars' different interpretations of Lao Zi. Zhang Daoling's writing Lao-Zi Xing-Er Commentary is an important document of Taoism of Lao-Zi. His interpretation obviously distorts the original meaning of Lao Zi and states the religious thoughts of Taoism of Lao-Zi. Otherwise, Liu chu xuan and Yin zhi ping are the representatives of the Quanzhen School of Taoism, and they have dissimilar statements about Lao Zi.