过去不是我们抛在身后的东西；它是我们内心携带的东西，塑造着我们的现在和未来。

The only person you should try to be better than is the person you were yesterday.

I'm mentioning all this -- I'm mentioning all this because I think this is not merely a personal problem; you may think I'm wrong in this, but I think we live in an age when our lives are regularly punctuated by career crises, by moments when what we thought we knew -- about our lives, about our careers -- comes into contact with a threatening sort of reality.

The more I learn, the more I realize how much I don't know.