《吕氏春秋·览·恃君览》
伯成子高说： 尧的时候，不奖赏可是人们却勉力向善，不惩罚可是人们却畏惧为非。
伯成子高曰： 当尧之时，未赏而民劝，未罚而民畏。民不知怨，不知说，愉愉其如赤子。
Bocheng Zigao said: In the time of Yao, there were no rewards, but people still made an effort to do good; there were no punishments, but people were afraid of doing wrong.