《韩非子·有度》
先王认为这三种器官不够，所以放弃自己的才能而依赖法术，严明赏罚。
先王以三者为不足，故舍己能而因法数，审赏罚。
The Ancient Kings did not consider these three means enough, and therefore, abandoning their natural intelligences, relied upon laws and punishments to define what should be rewarded or punished.