江山易改,本性難移
Rivers and mountains may be changed but it's hard to alter a man's nature.；A leopard never changes his spots.；It's easy to change rivers and mountains but hard to change a person's nature.；The child is father of the man.；You can change mountains and rivers but not a person's nature.更多釋義>>
江山易改，本性難移 A crow is never the whiter for washing herself often