如果你不能保持灵活的思路，就会抓狂，忽视解决问题的其他可能性。
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.
2007年：贝索斯致股东信《我们改变工具，工具也改变我们》
没有最好，只有更好。人才的分配是不公平的，但我们改善自己的道路是没有终点的。
译文：对于天下的士人，最可贵的是能够排除忧患，消除纷争，解决困难，而不去索要任何回报。
The most sustainable forest is one that provides value to people while maintaining its ecological integrity.
知识的最大敌人不是无知，而是对知识的幻觉。
Remember, hope is a good thing, maybe the best of things. And no good thing ever dies.