Do nothing by halves.凡事不可半途而废。

A fair face may hide a foul heart. 人不可貌相

Dont make a mountain out of a molehill. 不要小题大做。

Rome was not built in a day. 冰冻三尺，非一日之寒。

The man with a new idea is a crank until the idea succeeds .(Mark Twain , American writer) 具有新想法的人在其想法实现之前是个怪人。马克·吐温

Saying and doing are two different things. 说和做是迥然不同的两回事。

If you sell the cow, you sell her milk too.杀鸡取卵

Kill two birds with one stone.一箭双雕。

Having a calm smile to face with being disdained indicates kind of confidence.被轻蔑的时候能平静的一笑，这是一种自信。

Great mens sons seldom do well.富不过三代。