《太平广记·卷四百九十九·杂录七》
初次到官场中，礼部侍郎郑愚为他长相难看，戏弄说： 你很有才学，但又能对一个 日 怎么样呢？ 
初至场中，礼部侍郎郑愚以其貌不扬，戏之曰： 子之才学甚富，其如一日何？ 
When he first arrived in officialdom, the ritual minister Zheng Yu teased him for his unsightly appearance, saying: "You are very talented, but what can you do when faced with a 日 (sun)?"