Revolution looks at the intersection ahead and pushes people to do the right thing.

We get to design what we want to see in the world rather than doing what other people think should be done.

Meet customers where they are; question how to make the tools customers use more valuable.

IM is interesting because you look at your buddy list and, at a glance, see what your friends are listening to, what they're working on, what they're doing. The problem was that you were bound to the computer keyboard.

What I love about New York is just the electricity I feel right away.

Twitter has been my life's work in many senses. It started with a fascination with cities and how they work, and what's going on in them right now.

Your job as an executive is to edit, not write. It's OK to write once in a while but if you do it often there's a fundamental problem with the team. Every time you do something ask if you're writing or editing and get in the mode of editing.