When I talk to entrepreneurs today, I feel like the grandfather who was in the Civil War.

There will be certain points of time when everything collides together and reaches critical mass around a new concept or a new thing that ends up being hugely relevant to a high percentage of people or businesses. But it's really really hard to predict those. I don't believe anyone can.

There was a point in the late '90s where all the graduating M.B.A.'s wanted to start companies in Silicon Valley, and for the most part they were not actually qualified to do it.

There are people who are wired to be skeptics and there are people who are wired to be optimists. And I can tell you, at least from the last 20 years, if you bet on the side of the optimists, generally you’re right.

You only ever experience two emotions: euphoria and terror. And I find that lack of sleep enhances them both.

A lot of things you want to do as part of daily life can now be done over the Internet.

I am bullish on the global development. I am bullish on billions of people getting out of poverty.