只有那些渴望自由的人才能拥有自由。

The most successful businesses are those that understand their customers better than anyone else.

"The writer's job is to be a witness to his time."

Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

解释：向外物游览就要要求外物的完备，向自己内心求取，则能充实完善自身。

我为什么要站到这儿，我站到讲台上，是想提醒我自己我们必须时刻用不同的眼光来看待事物。