People generally worry about social networking more than they need to. In kind of consumer internet investing and on social and professional networks, I kind of look at time spending and time efficiency. You know, time saving sites. So on time spending sites, things where you play lots of games or that sort of thing, you might worry about a productivity loss if people are spending a lot of time doing that. So if there's a lot of kind of addictive gaming going on during work hours, that won't be as helpful to you.

By 2030 over 2 billion jobs will disappear.

It's nice to be happy. But the meaning of life is meaning - what's the impact you're having on the world. Suffering to accomplish that is a perfectly fine thing.

World-changing startups need to be premised on accurate contrarian theories.

I think Hillary [Clinton] has [woken up to the plight of the middle class] and is working toward it in a democratic process.

The key thing for all businesses, and especially of course technology businesses or businesses that employ technology as a key kind of strategic advantage, is you always have to be investing in the future.

Your network is the people who want to help you, and you want to help them, and that's really powerful.