jiāng shān yì gǎi,bǐng xìng nán yí
政体容易更改,本性难于变移,比喻生性风格或既成的事实难以改变
明·冯梦龙《醒世恒言》第35卷:“常言道得好:‘江山易改,禀性难移。’”
江山易改,禀性难移作宾语、定语、分句;用于劝诫人。
It's easy to change rivers and mountains but hard to change a person's nature