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Every moment is a chance to start over.

The information gap is harder to bridge than the wealth gap.

在采礦業，安全不是優先事項，而是一種價值觀。

最深刻的定理往往有最簡單的證明 - 如果你從正確的角度看它們的話。

So, I'm going to end it there. But what I really want to stress is: by all means, success, yes. But let's accept the strangeness of some of our ideas. Let's probe away at our notions of success. Let's make sure our ideas of success are truly our own.

It really matters whether people are working on generating clean energy or improving transportation or making the Internet work better and all those things. And small groups of people can have a really huge impact.