《汉书·纪·武帝纪》
五月，诏贤良说： 朕听说昔日唐虞之世，只用罪衣以象征五刑而民不能犯法律，日月所照，莫不臣服。
五月，诏贤良曰： 朕闻昔在唐、虞，画像而民不犯，日月所烛，莫不率俾。
In May, the emperor issued an edict to solicit advice from sages and talents, saying: "I heard that in the past during the reigns of Emperor Tang and Emperor Yu, only symbolic garments for five types of punishment were used, and the people would not violate the laws. Under the illumination of the sun and moon, all submitted to the imperial rule obediently.