The hammer used in ironmaking is very hard. If it is not hard, how can it be made of hard iron? Lawyers must be self-disciplined first.

While the iron is hot, it needs to be hard by itself;

It is the traditional vernacular in China and people often talk about it. If it is more elegant, in other words, it is "its body is upright and not ordered; His body is not right, although he does not obey. "

To be more specific, Qian Qi, a politician in the Ming Dynasty, said in Qian Gongliang: "Those who govern people must be autonomous first, those who blame others must blame themselves first, and adults must be ashamed." This all means the same thing, about the extreme importance of officials' own quality.