In a world of asynchronous threats, it is too dangerous for there not to be some way to identify you. We need a [verified] name service for people. Governments will demand it.

The rise of Google, the rise of Facebook, the rise of Apple, I think are proof that there is a place for computer science as something that solves problems that people face every day.

Find a way to say “Yes” to things. Say yes to invitations to a new country, say yes to meet new friends, say yes to learning a new language, picking up a new sport. Yes is how you get your first job, and your next job. Yes is how you find your spouse, and even your kids.

One person's definition of evil is another person's different definition.

I had a rule that I had to go to bed before the sun came up. So I used to look up the sunrise times because I thought it would be bad karma to be going to bed as dawn was arriving.

It's because of this fundamental shift towards user-generated information that people will listen more to other people than to traditional resources.

When the Internet publicity began, I remember being struck by how much the world was not the way we thought it was, that there was infinite variation in how people viewed the world.