What left by the earthquake in Yangzhen at dusk?

(Yang Zhen) moved to Jingzhou four times and became Governor of Donglai. In the county, the road passed through Changyi, so Wang Mi, maocai, Jingzhou was cited as Changyi's order, and the audience was pregnant with gold and ten gold at night. Zhen said, "An old friend knows a gentleman, but you don't know an old friend. Why? " The secret: "Twilight is ignorant." Zhen said, "Heaven knows, earth knows, I know, I know. What is ignorance! " Come out in shame.

Translation:

Yang Zhen was transferred to Jingzhou secretariat and Donglai satrap for four times. When he took office in the county, he passed by Changyi, and Wang Mi, the top scholar of Jingzhou, whom he recommended in the past, was working as a county magistrate in Changyi. In the evening, Wang Mi went to see Yang Zhen and gave him ten catties of gold. Yang Zhen said, "I know you, but you don't know me. What's wrong? " Wang Mi said, "It's so late that no one can know about it." Yang Zhen said, "God knows, God knows, I know, you know. How can you say that no one knows? " Wang Mi quit in shame.