海洋不属于我们——我们属于海洋，我们必须相应地行动。
The ocean doesn’t belong to us—we belong to it, and we must act accordingly.
The interplay between analysis and algebra is the driving force behind many breakthroughs in number theory.
If you don't go through the tough times, you don't get to the good times.
出自《论语·先进篇第十一》。子路问孔子说：“我大胆的请教您，死是怎么回事呢？”孔子回答说：“还不知道生是怎么一回事，怎么能够知道死亡呢？”
世界是一个问号。