To overcome strength with softness is a Chinese idiom, which means to use softness to overcome strongness. The theory advocated by Taoism is to let nature take its course, and all things are mutually reinforcing and restraining each other. Strong things do not necessarily need to be conquered by stronger ones. Sometimes the softest things are just their weaknesses.

Source:

Zhuge Liang's "Jiang Yuan" of Shu in the Three Kingdoms: "A good general is one whose strength cannot be broken and whose softness cannot be rolled. Therefore, he uses weakness to control the strong and softness to control the hardness." "

Example: He wants to risk his life and make a desperate move, but we must be patient, avoid direct confrontation with the enemy, use softness to overcome hardness, and hit the enemy hard in the rear.

Li Lianqing's "The Storm"