keep one 's heart as hard as the nether millstone(xīn rú jīn shí)

keep one 's heart as hard as the nether millstone

Heart like stone, pronounced x ī NR ú J ī NSH í, is a Chinese idiom, which means heart like stone. It refers to being hard hearted or determined. It comes from the biography of Wang Chang in the book of the later Han Dynasty.

explain

My heart is as iron as stone. It refers to being hard hearted or determined.

allusion

Source: Wang Changzhuan in the book of the later Han Dynasty: "this family leads all the generals to the lower reaches of the river to assist the Han Dynasty. They are as loyal as gold and stone."

Example: if you are in danger, how can you accomplish great things if you don't know how to go far? History of the Five Dynasties

Chinese PinYin : xīn rú jīn shí