We know not what is good until we have lost it. 好东西，失去了才明白。

Wealth is nothing without health. 失去健康，钱再多也没用。

Water dropping day by day wears the hardest rock away. 滴水穿石。

Wash your dirty linen at home. 家丑不可外扬。

Walls have ears. 小心隔墙有耳。

Virtue is fairer far than beauty. 美德远远胜过美貌。

Venture a small fish to catch a great one. 吃小亏占大便宜。

Until all is over one's ambition never dies. 不到黄河心不死。

Unpleasant advice is a good medicine. 忠言逆耳利于行。

Unity is strength. 团结就是力量。