本性难移 běnxìngnányí nature is hard to change Origin Definitions Defs Strokes Stroke Words Sentences Sents 江山易改，本性难移 jiāngshānyìgǎiběnxìngnányí you can't change who you are (idiom) it is easier to change mountains and rivers than to alter one's character; used to emphasize that a person's nature is deeply rooted and difficult to change