用秤称一称，才能知道轻重；用尺量一量，才能知道长短。

有时候，为了得到你想要的东西，你得有点调皮。

If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

领导力不是发号施令，而是激励他人成就卓越。