《明史·列传·卷一百五十七》
我认为应该合计贼兵到底有多少，应该用多少官兵，多少粮饷，估计够用时，再审察地利，或者正面进攻，或者奇兵袭击，或者打埋伏，或者走小路，或者打击贼兵首尾，或者冲击贼兵左右，这样我不相信还会有不能立即消灭的。
宜合计贼众多寡，用兵若干，饷若干，度其足用，然后审察地利，用正用奇，用伏用间，或击首尾，或冲左右，有不即时殄灭者，臣不信也。
I think we need to calculate how many enemy soldiers there are, how many soldiers we need, how many supplies we need, and estimate if there are enough. Then we can study the geography, and decide whether to attack head-on, ambush, or lay a trap, or take alternative routes, or attack the enemy's front and back, or attack the enemy's flanks. I don't believe there will be situations where we can't eliminate the enemy.