Both my wife and I have a lot of compassion for animals in general.

Success isn´t guaranteed, but failure is certain if you aren´t truly emotionally invested in your work.

We hired a CSR person at Twitter, years before we hired our first sales person, to make sure we had a culture and impact of doing good.

We actually created Twitter and Odeo at the same time. When we realized we didn't really want to be running Odeo anymore we looked around for anyone who wanted to buy Odeo, but not acquire us as a technology. But people aren't as interested in that.

I mean just look at haiku, the idea of it. We want to focus on that singularity, on that simplicity, but we still want to add features and add value, but we want to do it in a way that fits in with that mentality of simplicity. You have to spend a lot of time thinking about it.

When you think of a social network, you have these two-way interactions: "Are you my friend? Yes? No? Yes?" Like LinkedIn, it's business oriented, but it's all about establishing connections. You connect to me through my other connections, and that sort of thing, and you sort of define who your friends are. Twitter doesn't have that.

The two things I use the most are the MacBook Air and my iPhone. Those are my two most-used gadgets that are dented, scratched and smashed.