Duke Huan: Why do the few people read the dross of the ancients. Lunbian: According to my experience, when the wheel hole is made a little larger, it will be loose and slippery, but not firm, and if it is made a little smaller, it will be stagnant and difficult to enter.If you want to make it not too small, neither loose nor tight, you must get it from the heart and deal with it. There are superb skills in it, but it cannot be conveyed in words. I cannot teach my son
I have to turn when I am 70 years old. The ancients have died, and the essence that they cannot explain has disappeared
In addition to the essence and dross, there are other things worth reading.