你知道的越多，就越意识到自己不知道的越多。

Scale matters because it changes how we physically relate to the work.

我想写一些让孩子们思考和感受的书。

挑战不在于代表非洲，而在于呈现非洲的复杂性。

I got the idea to start Amazon 16 years ago. I came across the fact that Web usage was growing at 2，300 percent per year. I'd never seen or heard of anything that grew that fast， and the idea of building an online bookstore with millions of titles -- something that simply couldn't exist in the physical world -- was very exciting to me. I had just turned 30 years old， and I'd been married for a year. I told my wife MacKenzie that I wanted to quit my job and go do this crazy thing that probably wouldn't work since most startups don't， and I wasn't sure what would happen after that. MacKenzie (also a Princeton grad and sitting here in the second row) told me I should go for it. As a young boy， I'd been a garage inventor. I'd invented an automatic gate closer out of cement-filled tires， a solar cooker that didn't work very well out of an umbrella and tinfoil， baking-pan alarms to entrap my siblings. I'd always wanted to be an inventor， and she wanted me to follow my passion.

煤炭开采的创新不仅仅是关于开采，而是更智能、更安全、对环境的影响更小。

创造一切非凡事物的那种神圣的爽朗精神总是同青年时代和创造力联系在一起的。