Chapter 1: Jiu Zhen Shi Er Yuan (nine kinds of needles, twelve Yuan points）九针十二原第一
1.Inserting a needle, and catching "ji"
Article III "Zhi Ji zhi dao zhe, bu ke gua yi fa".
知机之道者，不可挂以发，
= "A doctor who knows how to find "ji", a hair on his hand will disturb him"
Article IV "Bu zhi ji dao, kou zhi bu fa"
不知机道，叩之不发，
= "If you do not understand "ji", trying hard will not work".
Article V. "Zhi qi wang lai, yao yu zhi gi
"知其往来，要与之期，
= "You know it comes and goes, you know when it does".
From Dr. Li Xin, Dr.Claudine Merer TCM : BACK TO THE SOURCES FOR A MODERN APPROACH P315