"We are all searching for something, but we don't always know what it is. Sometimes it's a person, sometimes it's a place, and sometimes it's just a feeling."

Innovation is the key to unlocking a sustainable energy future.

民主就是指人民用人民的大头棒打击人民。

天才不过是长久的耐心。

在数学中，最简单的解释往往是最深刻的。