《资治通鉴·汉纪·汉纪二》
善于用兵的人，从不以自己的短处去攻击他人的长处，而是要用自己的长处去对付他人的短处。 
善用兵者，不以短击长而以长击短。 
Those skilled in military affairs, don't use their weakness to attack others' superiority, but use their superiority to fight against others' weakness.