《战国策·秦二·陉山之事》
所以我私下对我们国王说： 秦王精明而善于谋划，穰侯明智而善于办事，一定不会增援赵国四万兵力来进攻齐国的。  
故臣窃必之弊邑之王曰： 秦王明而熟于计，穰侯智而习于事，必不益赵甲四万人以伐齐矣。  
So I secretly said to our king: King Qin is clever and good at planning, and Lord Rang is wise and good at doing things. He will definitely not increase his troops to 40,000 to attack Qi.