a settled practice is hard to reform
Chinese idiom, Pinyin J ī x í n á ng ǎ I, means that old habits formed for a long time are hard to change. It comes from Ba Jin's on one's own creation - preface.
The origin of Idioms
Ba Jin's "on my own creation · preface": "it's really hard to change my habits. When I take up my pen, it's like turning on the tap and the water is flowing continuously."
Idiom usage
I don't believe that it's hard to change old habits. The key is to find a way to change them.
Chinese PinYin : jī xí nán gǎi
a settled practice is hard to reform
It's hard to live up to its reputation. shèng míng zhī xià,qí shí nán fù
Do what is good and do what is good. dǎo rén lǚ yì