他山之石

Explanation: Metaphor can help to correct shortcomings or their own opinions. 　　Usage: Partial official; as subject, predicate, object; with a compliment 　　Source: "Book of Songs Xiaoya Heming": "Stones from other hills, can be wrong." Thesaurus:  great person given an important post by another country, Chu before hiring, lesson from the failure of one’ s predecessor, The hiring of foreign talent, Pernicious, take warning from Antonym Group:  A loss minor success, obtain materials from local sources; draw on local resources, gain and loss considerable, The Hill borrow, one loses a thing which people at his side pick up