I want to stay hungry. I really believe my resources are best used to help projects that make the world suck less.

It takes discipline not to let social media steal your time.

The reason people need advice on using social media is that they're a much more complex and nuanced way to communicate than a conversation or email.

The social-media landscape changes incredibly fast, so you have to be open-minded and nimble to keep up with it.

Being effective at social media, whether for business or personal use, means capturing people who have short attention spans. They're only a click away from a picture of a funny cat, so you have to make your thing more compelling than that cat. And that can be a high bar.

My junior year, I went to an LSAT-prep course. I flipped over my test and thought, 'You bastards.' I walked out and went to Waffle House. That's where I had what I call 'The Waffle House Epiphany': I didn't want to be a lawyer. I wanted to make a dent in the universe.

The best part of being an angel investor is seeing these kids coming up with companies that get way more traffic than Reddit had when we sold it. I think, 'Are you kidding me? They're just kids, and they've done so much.'