I've really enjoyed starting Quora from the beginning. It's really nice to have a new start to things.

You can go to Pinterest, and they'll get to know who your friends are, but they don't get to know very much about what you've done in the past. They're starting with little information about you, and they have to do this personalization.

I really like knowledge and reading books and just generally immersing myself in information.

A lot of people really like to answer questions, and they really enjoy sharing their knowledge. Especially people who have valuable knowledge.

To become a star is the beginning of the end. I don't really want to be saddled with a screen persona.

We want Quora to last forever, and in order to last forever, it's going to need to have revenue. One of the best things about ads is that you don't need to exclude anyone.