所有人类行为都有以下七个原因中的一个或多个：机会、自然、强迫、习惯、理性、激情和欲望。

Only those who are proactive can win success in the rapidly changing competitive environment, and only those who are good at showcasing themselves can get real opportunities at work.

"The beauty of literature lies in its ability to transcend time and space."

The Langlands program is a framework for exploring the deepest mysteries of mathematics.