I think of Twitter as a messaging system that you didn't know you needed until you had it. Think about when cell phones first started coming out. People said, "Why would I carry my phone around?" And now you'll drive back to your house thirty miles if you forget your cell phone.

Timing, perseverance, and ten years of trying will eventually make you look like an overnight success.

I've probably overused this analogy of a flock of birds moving around an object in flight, but, in reality, it's so simple, real time communication of individuals that allow for this super organism type of organism to happen.

You have to think for an email. What's the subject? What's it about? It takes two seconds to think about that. So you have to think, Is this a work thing or a social thing? Which? Then you get into a situation that you don't want to be in, because then people are thinking about it too much.

We did Twitter, and Twitter grew so fast, and in 2006 we spun it out into Twitter, Inc.

The most rewarding thing for me has been this affirmation for me that people are basically good and smart, and if you give them a simple tool that allows them to exhibit that behavior, they'll prove it to you every single day.

In any leadership position, you're always going to be disappointing somebody.