saying is one thing and doing another.

1、言行不一。

seeing is believing.

2、眼见为实。

seek the truth from facts.

3、实事求是。

send a wise man on an errand, and say nothing to him.

4、智者当差，不用交代。

set a thief to catch a thief.

5、以贼捉贼。

short accounts make long friends.

6、好朋友勤算账。

something is better than nothing.

7、聊胜于无。

soon learn, soon forgotten.

8、学得快，忘得快。

soon ripe, soon rotten.

9、熟得快，烂得快。

speech is silver, silence is gold.

10、能言是银，沉默是金。