不言而信

Explanation: Needless to say that what the old gentleman can get other people's trust. Describe a high prestige. 　　Source: "Zhuangzi Tian sub-side," Master without saying that the letter, unlike the week. " 　　Examples: Yao and Shun the world, while the princes are Baiguan services to Sixiong and world security, ~, not anger and Granville. (Ming Feng Meng, "Eastern Zhou Zhi" Eighteenth back)