Limestone can only be mined from the deep mountains after tens of millions of hammering. It regards burning with raging fire as a very common thing. Even if it is shattered, it is not afraid. It is willing to leave a clean body in the world.

Original poem:

It can only be extracted from the deep mountains after being struck by thousands of hammers. It regards the burning of the burning fire as a very common thing. Even if it is smashed to pieces, I am not afraid, and I am willing to leave a clean one in the world.

About the author: Yu Qian (1May 39813-1February 457 16), a native of Qiantang (now Hangzhou, Zhejiang) in the Ming Dynasty, was named Ting Yi, whose name was Jie 'an [ān]. Yongle Jinshi, Xuande first gave advice, and once suppressed the rebellion of Hanwang Zhu with Xuanzong. After the rebellion, Yu Qian was promoted to the governor of Jiangxi by Xuanzong for criticizing Zhu, and received rave reviews. Five years (1430), assistant minister of the right Ministry of War, governor of Shanxi, Henan. In the eleventh year of orthodoxy (1446), he went to Beijing to see Wang Zhen, because he didn't flatter him and gave him gifts, which caused Wang Zhen's dissatisfaction. He secretly instructed his confidant Li Xi to put him in prison and put him to death because he was dissatisfied with the emperor. Later, officials from two provinces and even Wang Li demanded to be reinstated.