Mathematics is not a spectator sport. You have to do it to understand it.

关键是不断进步，不断奋斗，不断相信。

如果你想要帮助别人，告诉他们真相。如果你想帮助自己，告诉他们他们想听的。

The beauty of astronomy lies in its ability to connect us to the vastness of the cosmos.

爱是唯一能让我们忘记存在恐怖的东西。

小说应该是一本问题的书，而不是答案的书。