Just build things and find out if they work.

One of the things I've learned is to be receptive of feedback.

I was obsessed with this idea that these things that you collect, they just say so much about who you are. I can't say it came from hard-nosed business analysis... It was just something I really want to see built.

There's a lot of pressure to look like the last company that was successful.

I think the thing that I've learned is that really great people, they actually want to work on hard problems.

I look around my neighborhood, and I see people hailing a cab or ordering their food and then paying for it all with their phone. I've read about that stuff for a really long time, and now it's starting to become commonplace.

I always read about these stories of entrepreneurs - it’s like they’re in the desert with no water, and they’re the ones that survive. But I’ve been really fortunate to have people on my team who are optimistic about the future and who know that if you work through hard times that there’s usually something good at the end.