自然的法则是无情的。

There are other reasons --There are other reasons why it's perhaps harder now to feel calm than ever before. One of these, and it's paradoxical, because it's linked to something that's rather nice, is the hope we all have for our careers. Never before have expectations been so high about what human beings can achieve with their life span.

你做得越多，学到的就越多。你学到的越多，能做的就越多。

You can't control everything in life, but you can control how you react to it.