《孙膑兵法·奇正》
因此，善于用兵作战的人，了解敌军的长处，就能知道敌军的短处；了解敌军不足的方面，就能知道敌军优胜的方面，这种人预见胜利，就如同预见日月升降一样准确容易，这种人取胜的措施，就如同用水灭火一样有效。
故善战者，见敌之所长，则知其所短；见敌之所不足，则知其所有余。见胜如见日月。其错胜也，如以水胜火。
Therefore, those who are good at using soldiers and fighting understand the strengths of the enemy army, and they will know the weaknesses of the enemy army; those who understand the shortcomings of the enemy army can know the superior aspects of the enemy army. Such people predict victory, just as it is easy to predict the rising and setting of the sun and the moon. The measures of victory for such people, just like using water to extinguish a fire, are effective.