Soon ripe, soon rotten. 熟得快，爛得快。

Soon learn, soon forgotten. 學得快，忘得快。

Something is better than nothing. 聊勝於無。

Short accounts make long friends. 好朋友勤算賬。

Set a thief to catch a thief. 以賊捉賊。

Send a wise man on an errand, and say nothing to him. 智者當差，不用交代。

Seek the truth from facts. 實事求是。

Seeing is believing. 眼見為實。

Saying is one thing and doing another. 言行不一。

Rome is not built in a day. 冰凍三尺，非一日之寒。