You don't write because you want to say something, you write because you have something to say.

I've been waiting more than 30 years to say this: "Dad, I always told you I'd come back and get my degree." I want to thank Harvard for this timely honor. I'll be changing my job next year…and it will be nice to finally have a college degree on my resume.

知识的最大敌人不是无知，而是知识的幻觉。

技术的本质绝不是任何技术性的东西。

相信自己和你所拥有的一切。知道你内心有一种力量，比任何障碍都更强大。

 对于每一个出现的表象，我们应该提出相等的表象。