《百战奇略·第一卷·教战》
战国时期，魏国将领吴起说： 将士常常战死于没有打仗本领上，失败于缺乏灵活的战术。
战国时，魏将吴起曰： 夫人常死其所不能，败其所不便。
During the Warring States period, Wu Qi, a Wei general, said: "Soldiers often die in battle due to a lack of combat skills and fail due to a lack of flexible tactics."