I use Pinterest for everything. Book collections, trips, hobbies. It’s all there. I planned my wedding on it. When I had a kid, I planned all his stuff on it. So it was nice to discover that I wasn’t the only one.

The companies that I really admire the most are the ones that have a deep visceral understanding of why people use their service, and they figure out ways of making money that are completely consistent with how people are feeling and what they are doing at the time.

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.

I use Pinterest for everything. Book collections, trips, hobbies. It’s all there. I planned my wedding on it. When I had a kid, I planned all his stuff on it. So it was nice to discover that I wasn’t the only one.

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 kind of think of engineering like the chefs at a restaurant. Nobody's going to deny chefs are integrally important, but there's also so many other people who contribute to a great meal.

Don't take too much advice. Most people who have a lot of advice to give ~ with a few exceptions ~ generalize whatever they did. Don't over-analyze everything. I myself have been guilty of over-thinking problems. Just build things and find out if they work.