牧豕听经

Explanation: Side of the herdsmen, side listening. Parable study efforts. 　　Source: "Biography of the Later Han Cheng Gong" less lonely old man, animal husbandry on hog. Xu Zaisheng village were to "Spring and Autumn" hundreds of people granted all students, Gong Lu had interest, the music of their industry, due to heard by, then please stay in Ha, for all students pick up pay. "