Poor is the man whose pleasures depend on the permission of another.

 Love won’t obey our expectation. Its mystery is pure and absolute.

The future competition is not about technology, but about data capabilities.

友谊是时间投资的问题。

数学的美只向更有耐心的追随者展示。

每个时代的统治思想总是统治阶级的思想。

【讲解】：聪明的人不会疑惑，实行仁德的人会忧愁，真正勇敢的人，不会畏惧。