凡是圣人制造的这些东西，无一不是有益于实用才去做的，所以使用财物不浪费，民众能够不劳苦，他兴起的利益太多了。 

或许谁都还会有这些弱点，否则可真糟了，绝顶的聪慧也要招人嘲笑了。我一生都在研究该怎么样避免这些弱点。例如虚荣和傲慢就是属于这一类弱点。

循环经济原则可以将林业部门的废物转化为价值。

"In every ending, there is a beginning waiting to be discovered."

合乎伦理的科学不是一种限制，而是信任的基础。

I believe in the passion of creation, and I believe in the love of my fans.

荒野是一个充满教训的地方。要生存，你必须从中学习。

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.