A country is easy to change, but a disposition is hard to change
This idiom comes from Ming Dynasty's Feng Menglong's Xingshi Hengyan. It refers to the change of human nature, which is more difficult than the change of rivers and mountains.
[idiom] easy to change, hard to change temperament [Pinyin] Ji ā ngsh ā NY ì G I, B ǐ NGX ì NGN á NY í [explanation] temperament: nature, nature (psychology refers to character). The change of human nature is more difficult than the change of rivers and mountains. It's hard to change human nature. [source] Volume 35 of Xing Shi Heng Yan by Feng Menglong of Ming Dynasty: "I don't know what the officials have. As the saying goes, "a good way is easy to change, but a good disposition is hard to change."
Chinese PinYin : jiāng shān yì gǎi,bǐng xìng nán yí
A country is easy to change, but a disposition is hard to change
envy sb . better or abler than oneself. dù xián jí néng
a good medicine tastes bitter. kǔ kǒu liáng yào