In the thirteenth year of Hongwu, the Hu Weiyong case began. Jing'an Hou Fangxiu was impeached by the officials, raised private soldiers, and formed a party for personal gain. Zhu Yuanzhang and hundreds of civil and military officials came to Fang Xiu's residence for verification. But he found that he was wearing single clothes, eating leftovers, and living in a thatched hut in the cold winter, and he was like a day for thirty years. The money saved was either used to build a academy or to make guns. Many years later, in the face of Fang Xiu, who was already the prime minister, Zhu Yuanzhang finally couldn't bear it anymore: "Fang Aiqing, please, be corrupt! We don't allow a poor prime minister like you! ”