Guilty consciences make men cowards.

做贼心虚。

He is a wise man who speaks little.

聪明不是挂在嘴上。

Extremes meet.

物极必反。

Nothing comes of nothing.

事出必有因。

He is not laughed at that laughs at himself first.

自嘲者不会让人见笑。

Walls have ears.

隔墙有耳。

If you venture nothing, you will have nothing.

不入虎穴，焉得虎子。

Failure is the mother of success.

失败是成功之母。

Good health is above wealth.  

健康重于财富。

The spirit is willing, but the flesh is weak.

心有余而力不足。

A leopard can not change his spots.

江山易改，本性难移。

Patience is a plaster for all sores.

忍耐是治疗一切伤痛的药膏。