keep one 's heart as hard as the nether millstone

keep one 's heart as hard as the nether millstone

Heart like stone, Chinese idiom, Pinyin is x ī NR ú Ti ě sh í, which means that the heart is as hard as stone. It means that the heart is hard or the will is very firm. It comes from the order that the king of imperial edict must lead a long history.

Analysis of Idioms

Cold as ice, hard as stone

Idiom usage

Zi Long was born in adversity, not by wealth. The forty first chapter of romance of the Three Kingdoms by Luo Guanzhong in Ming Dynasty

The origin of Idioms

Cao Cao of Han Dynasty wrote that "the king of imperial edict must receive the order of long history": "loyalty, diligence, heart as iron as a stone, the country's good officials."