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.

I think before Twitter people didn't think that way, not in any sort of meaningful or specific way, so what I'm trying to say, if we're trying a bunch of stuff, a lot of cool and great social stuff, a lot of platform stuff, then some of it will stick, and some of it will be junked over. Some of it will be just like the cell phone, you can't imagine not having it.

If people are passionate about your product, whether it's because they're hating or loving it, those are both good scenarios.

I've seen people twitter in haiku only.

You have to have an emotional investment in what you're doing. If you don't love what you're doing, failure is pretty much guaranteed.

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.

When I studied graphic design, I learned a valuable lesson: There's no perfect answer to the puzzle, and creativity is a renewable resource.