In Jin Ji by Jin Gan Bao: "Because you don't attack." Tang Gu-Zhang De's Detailed Discussion on the Repair and Abolishment of Du Dongtai Temple: "It is said that all temples are built, and if they are not attacked, they will be destroyed.

The basic explanation is: if you don't attack, you will lose, which means that the defense is weak and vulnerable, and the arguments and plots are full of loopholes and can't stand the rebuttal.