Creativity comes from constraint.

There are a lot of sources of information out there, so why don't you curate for yourself a list, like a real timeline of information, like the New York Times, or JetBlue, or your friends, or this comedian, or this guy who pretends to be a cat, or whatever it is, whatever entertains you, whatever you find useful.

Willingness to take risks is the path to success.

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.

Positive culture comes from being mindful, and respecting your coworkers, and being empathetic.

I started designing book jackets, which was great because I was good at it. And then from there I decided to become a freelance graphic designer and I needed to expand beyond book jackets, so I taught myself web design, and then in 1999 some friends of mine decided to start a company called Xanga.com, which was a very early kind of social network slash blogging community.

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.