I think everyone should learn how to code.

I hate phone calls so I believe in a telephone armistice. To me, the idea of calling someone unprompted is basically saying, 'Hey, stop whatever you're doing and talk to me right now.

We were very, very lucky being in the first round of Y Combinator because that alone generated a lot of interest. A lot of readers of Paul Graham were just excited to see what was going to come up. And we were the first ones to launch.

You know that Estonia, based largely on how successful Skype was, built by Estonian developers, that was a tenth of the entire country's GDP when eBay bought it. That was like a decade ago, it was f****** Estonia, they were behind the Iron Curtain two decades earlier. They're now pushing for K-12 education in computer science in public schools. They've gotten the message. They know how much value that can bring.

The people who are going to be succeeding are not going to be waiting around for anyone's permission.

Entrepreneur is just French for 'has ideas, does them'.

Every founder has to delude themselves into thinking, "Yes, it's going to be big. It's going to take over the world."