I don’t need anyone to complete me. I complete myself.

解释：处于安全环境时要考虑到可能出现的危险，考虑到危险就会有所准备，事先有了准备就可以避免祸患。

粒子的概念只是近似的，并且只有在动量较小的极限下才有意义。

It’s not just what you say that stirs people. It’s the way that you say it.

To lead is to serve.

The only reason for time is so that everything doesn't happen at once.

最好的领导者不只是管理人，而是激励他们管理自己。

一本书本身就是一个世界，一个在我们眼前展开的宇宙。