《资治通鉴·魏纪·魏纪三》
诸葛亮对汉后主进言说： 先帝深深忧虑的是汉和魏贼不能同时并立，帝王的基业不能偏安于蜀地，所以托付我讨伐敌人。
亮上言于汉主曰： 先帝深虑以汉、贼不两立，王业不偏安，故托臣以讨贼。
Zhuge Liang said to the latter master of Han, "The former emperor was always deeply concerned that Han and the Wei thieves could not exist side by side, and that the imperial enterprise could not remain confined to Shu. Therefore he charged me with the task of conquering the enemy.