《论衡·卷十·非韩篇》
韩非听说这事，而指责鲁缪公，他认为明智的君主应该找出坏人并杀掉他们，子思不揭发坏人坏事让国君知道，而子服厉伯揭发了坏人坏事并告诉了鲁缪公，子服厉伯应该受到重视，而子思应该被轻视。
韩子闻之，以非缪公，以为明君求奸而诛之，子思不以奸闻，而厉伯以奸对，厉伯宜贵，子思宜贱。
Han Fei heard of this event and denounced the Duke of Lu. He believed that wise monarchs should seek out the wicked and kill them. Zi Si did not make the wicked and their wicked acts known to the ruler, but Zi Fu Li Bo made the wicked and their wicked acts known to the Duke of Lu. Thus, Zi Fu Li Bo should have been valued, whereas Zi Si should have been dismissed.