"Cool Saying Lao Tzu" is often desireless and always has desire: why is the truth mysterious and mysterious? The tao te ching, chapter 1: There is always no desire for the sake of seeing its wonders; there is always desire, in order to look at its delusions. Quote: Nameless, the beginning of heaven and earth; famous, the mother of all things. (1) The mainstream sentences in the academic circles are: (2) The non-mainstream sentences in the academic circles are: [References]: The two are the same name and the same name, the same name. [References]: These two, the same out of the same name, the same name, the same name of the Xuan. [References]: The True Xuan and the Xuan, the Door of All Wonders. 【References】: