《资治通鉴·梁纪·梁纪二十二》
文宣帝又能把政事委托给杨，杨善于统一掌握国家枢机的运行，使各个方面的政事都得到修整，所以当时的人都说文宣帝在上头昏头昏脑，但下面的政事却还算清明有序的。
又能委政杨愔，愔总摄机衡，百度修敕，故时人皆言主昏于上，政清于下。
Emperor Wenxuan was also able to entrust affairs of state to Yang, who was a skilled administrator and brought order to matters of government in all areas, with the result that people at the time said that Emperor Wenxuan was muddle-headed but that there was clarity and order in the affairs of state.