There is coming an era for people with a mathematical state of mind

The company that creates one global social graph will be very important going forward. It will be Facebook, with maybe 2-3 local social networks able to sustain competition long term.

I'm trying to learn from various corners of the world.

There is a significant momentum behind the social Internet. A wide range of public investors were very enthusiastic about that.

The polling of Internet users shows that friends recommendations are the most reliable driver behind purchasing decisions. Right now that market is largely untapped. Facebook and other social networks can allow that to happen.

Fundamental physics is like an art more or less. It's completely non-practical, and you can't use it for anything. But it's about the universe and how the world came into being. It's very remote from your daily life and mine, and yet it defines us as human beings.

It’s not how much something’s worth today, it’s what it’s worth in five or 10 years.