The essence of Tao. "Guiguzi Nei _" said: "Those who want to be together use the inside, those who want to go use the outside, and those who are outside and inside must count Ming Dow, and they must be aware of their affairs and see their doubts."

"The Biography of Zhu Hui in the Later Han Dynasty": "If people are not worried, the number of ways is not far." Li Xian's Note: "The counting is reasonable. Don't talk about feelings, you can't enter the Tao. "

"Three Kingdoms, Wu Zhi, Oracle Inscriptions": "Protected by nature, not enough words." Luck.

Biography of Chi Jian in the Book of Jin: "Why drag out an ignoble existence when the husband is honest?" ! The number of ways is the extreme, and it is the ear of survival. "Number of roads; Law. Zhou Lianggong's Shadow of the Qing Dynasty, Volume 1: "Today there are two characters, black and white, divided into four corners. The first son should be black and white and have laws; The number of ancient and modern roads is also different. "