"David Karp is just incredibly special. I like to think that I’m good at empathy, but I will say that David Karp is just incredibly empathetic and really in tune with the community of people that he has, that are contributing and creating on Tumblr."

“I was at Google. And if you looked at Tumblr and Yahoo!, you know when you look at a map and you can see the way that South America and Africa used to fit together, I sort of joked that as we got to know Tumblr we were like we kind of felt like those continents, like our users were older, their users were younger.”

“It was the height of the first boom, so it was 1999. It was a good year to be a graduate in computer science.”

“I always did something I was a little not ready to do. I think that's how you grow. When there's that moment of 'Wow, I'm not really sure I can do this,' and you push through those moments, that's when you have a breakthrough.”

“There are different phases of companies. When you’re in the tens of people, the idea itself either attracts people or it doesn’t. People are there because they think the problem you’re trying to solve is just that important.”

“I think I’ve always thought of culture as DNA. I don’t know a lot about genetics, but I understand some of it and I think that what you really want are the genes that are positive to hyper-express themselves in culture.”

“I’m proud of what we achieved at Yahoo. That said, we had a quickly decaying legacy business. All we really managed to do was offset the declines.”