如人饮水，冷暖自知

Explanation: Refers to his experience things that stand by themselves. 　　Usage: Complex sentence; for clause; that own direct experience of things that he knows best 　　Source: Song, Buddhism, Taoism original "Yuanzhou Meng Jing Chuan Deng Dominican Jackson recorded": "I am with the public, although in Huangmei, province of his face is not real. This means a grant of Mongolia into place, such as human drinking water, Lengnuanzizhi. Today Walker, that is, person A teacher also. " Thesaurus:  Such as fish, water, have a profound knowledge of sth.