Clumsy birds have to start flying early.

笨鸟先飞。

Business is business.

公事公办。

Bad luck often brings good luck.

塞翁失马，安知非福。

Behind the mountains there are people to be found.

天外有天，山外有山。

As heroes think, so thought Bruce.

英雄所见略同。

An apple a day keeps the doctor away.

一日一个苹果，身体健康不求医。

All time is no time when it is past.

机不可失，时不再来。

All rivers run into the sea.

殊途同归。

A fall into the pit, a gain in your wit.

吃一堑，长一智。

A contented mind is a continual / perpetual feast.

知足常乐。

A common danger causes common action.

同舟共济。

Suffering is the most powerful teacher of life.

苦难是人生最伟大的老师。

The world is like a mirror: Frown at itand it frowns at you; smile, and it smiles too.

世界犹如一面镜子：朝它皱眉它就朝你皱眉，朝它微笑它也吵你微笑。

There's only one corner of the universe you can be sure of improving, and that's your own self.

这个宇宙中只有一个角落你肯定可以改进，那就是你自己。