《韩非子·饰邪》
前者称说君主贤明，后者说君主暴乱，不可以拿来类推，像这样的就应禁止。
夫上称贤明，不称暴乱，不可以取类，若是者禁。
The former claims that the monarch is wise while the latter claims that the monarch is violent, and they cannot be analogized. The latter should be banned.