对知识的投资总是能带来最大的利益。学习是好学的人，财富是细心的人。如果一个人把钱包倒进他的头里，没有人能把它从他身边夺走。

It is a common experience that a problem difficult at night is resolved in the morning after the committee of sleep has worked on it.

一旦你给我贴上标签，你就否定了我。