释义：想要夺取什么，必先给予一些什么。

做你自己；别人都已经有人做了。

The idea that a bell rings to signal when investors should get into or out of the stock market is simply not credible.

I'm more worried about being a good person than being the best football player in the world. When all this is over, what's left is what you've achieved; what kind of person you were.

成功辨识的关键是找到一个足够灵活的模型结构，以捕捉系统的基本特征，同时又足够简单，可以从现有数据中估计出来。

Change is hardest in the beginning, messiest in the middle, and best at the end.

La musique exprime ce qui ne peut être dit et sur quoi il est impossible de rester silencieux.

To know this world is to love it, and to love it is to grieve for it.