So winning every battle is not a good thing. To quote Li Ke's words to Wei Wenhou: "Repeated victories will lead to demise." Why? Because every victory comes at a cost, with consumption. A hundred battles will exhaust the people, and a hundred victories will make the ruler arrogant. You are both exhausted and proud, while the opponent is determined to seek revenge, and the next battle may turn the tide. Moreover, if you have won a hundred battles and are still fighting, it shows that the quality of these victories is not high and the problem remains unresolved.