伯乐一顾

Explanation: Appreciated by the people good friend, the metaphor. 　　Source: "Warring Yan policy 2" set: the Warring States Period, the Soviet Union on behalf of said Chunyu Kun, Bole said, that people have reported, there are horses like to sell Robinson, with three stand once the city and made people Mo; willing to care for a child, Please offer and once the fee. Bole is the ring and as to the care of, once the price ten times the horse. 　　Examples: ~ The price of a few Mongolia, and flies the fly, but a few steps, that is, care ji tail, can never group. ★ "Later Han Wei Xiao Chuan"