When you think about email or IMing, why aren't you writing back? I can see your avatar, I know you're online, why aren't you writing me back? But with Twitter, everybody sends their responses to Twitter, and Twitter then sends them out to everyone. So there's not this constant connection. You can be hyperconnected, then you can take a break for a couple days and it's fine.

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.

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.

I'd dropped out of college to start design thing.

I haven't been paying attention to politics long enough to have really smart opinions.

This idea that the open exchange of information can have a positive global impact is being proven over and over again around the world nearly on a daily basis - and for Secretary Clinton to recognize that, I think, is a huge step.

Design is a career where you learn creative decision making.