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

An awful lot of successful technology companies ended up being in a slightly different market than they started out in. Microsoft started with programming tools, but came out with an operating system. Oracle started doing contracts for the CIA. AOL started out as an online video gaming network.

One of the advantages of moving quickly is if you do something wrong you can change it.

The gulf between what the press and many regular people believe Bitcoin is, and what a growing critical mass of technologists believe Bitcoin is, remains enormous.

Innovation doesn't come from the big company. It never has and never will. Innovation is something new that looks crazy at first glance. It comes from the 19-year-olds and the start-ups that no one's heard of.

If you're unhappy, you should change what you're doing.

Ten to 20 years out, driving your car will be viewed as equivalently immoral as smoking cigarettes around other people is today.