As for this sentence, it is because Takeda Shingen took it as a slogan. Actually, it is not the highest essence of Sun Tzu's Art of War. Its essence is something commonly used by China military strategists, such as LAM Raymond volcano, which belongs to basic common sense in the eyes of China military strategists and disdains to use it as a slogan. Takeda Shingen, in the final analysis, is a figure at the township level in China. What do you think he can have a higher understanding? So I saw that these words were more imposing and could be used as slogans, so I used them. So it is very popular in Japan.