《智囊(选录)·胆智部·周瑜 寇准 陈康伯》
请主公听我详说平曹的计划：现在北方并未完全平定，关西的马超和韩遂是曹操的后患；如今曹操竟舍弃善战的骑兵，而想与长于水战的吴兵在水上决战，岂不是自取败亡？再加上现在正值隆冬季节，马草军粮的补给都不方便；而曹军远来南方，水土不服、定会生病，这些都是曹操用兵的不利情况，所以主公想要活捉曹操，现在正是千载良机。
请为将军筹之。今北土未平，马超、韩遂尚在关西，为操后患；而操舍鞍马，仗舟楫，与吴越争衡；又今盛寒，马无藁草；中国士众，远涉江湖之险，不习水土，必生疾病。一一此数者，用兵之患周瑜也。
Please allow me to elaborate on my plan to defeat Cao: Right now, northern China is not yet completely pacified, and Ma Chao and Han Sui from Guanzhong pose a threat to Cao Cao's rear; yet, Cao Cao has somehow decided to abandon his formidable cavalry and instead challenge the Wu forces to a naval battle on the water, on which the Wu forces excel - isn't this tantamount to courting defeat? Besides, it is currently the height of winter, so horses and military provisions will be hard to come by; and since Cao Cao's army has come from afar to the south, they are bound to fall sick due to the unfamiliar climate and water conditions. These are all unfavorable factors for Cao Cao's army. Therefore, if my lord wishes to capture Cao Cao alive, now is the perfect opportunity.