By other's faults, wise men correct their own. Other people's business is my teacher. What do you mean?

Stones from other mountains can attack jade, which is not only a metaphor for talents from other countries who can serve their own country, but also a metaphor for people or opinions who can help them correct their shortcomings and learn from others' experiences, so that similar things can be better handled.

Part of speech of idioms: combination; As predicate, object, attribute and adverbial.

Usage of idioms: as subject and object; Refers to something that can be used for reference.

Idiom structure: compound sentence idioms and eight-character idioms.

extended meaning

In an era when transportation is underdeveloped, people's food, clothing, housing and transportation are still problems, external interference and civil strife are ignored, and financial resources and technology are very limited, the difficulty of building a large-scale garden landscape and the consumption of manpower, financial resources and material resources are completely imaginable. Such a flower of art actually grows and opens on barren land.

Perhaps, history is like this. Subjective motivation and final result are always separated, sometimes even completely opposite. Workers who build pyramids may not worship them as much as we do. A skillful craftsman who built the emperor's garden may not be satisfied with his work. This is really a moment, and this is also a moment.