善刀而藏

Explanation: Good: swab; good knife: knife clean. Knife wipe away. Enough is enough metaphor, since the convergence of their talents. 　　Source: "Zhuangzi health master" mentioned knife standing, whom look around for it and proud of his success, the possession of good knives. " 　　Examples: Exchange of air surge, made the transfer of various celebrities, odd parts of the camel-hyun also. What, then this time the true meaning Shaoling, long ~. (Qing Anonymous "Du Yan Zhi" Paper)