Big breakthrough ideas often seem nuts the first time you see them.

Skype has a great engineering team, which I like to describe as 'all of Estonia.'

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.

Big breakthrough ideas often seem nuts the first time you see them.

I always had the old-school model that I'm going to work for as long as I'm relevant and focus on for-profit activities and someday when I retire I'm going to learn about philanthropy.

If there's been a crisis in a market, you don't tend to have a new crisis in that market until the people who went through the last crisis aren't in the system anymore.

My own theory is that we are in the middle of a dramatic and broad technological and economic shift in which software companies are poised to take over large swathes of the economy