每本书都是作者和读者之间的对话。

人们可以非常聪明或拥有直接适用的技能，但如果他们不真正相信它，那么他们就不会真正努力工作。

意志不坚强的人，智慧也不会高到哪里去；说话不算数的人，做事也不会果敢痛快。

Never stop learning, because the world never stops changing.

Technology is nothing. What's important is that you have a faith in people, that they're basically good and smart, and if you give them tools, they'll do wonderful things with them.

如果你停下来听一个音乐家或街头艺人表演超过一分钟，你就欠他们一美元。