At Twitter, mobile is in our DNA ... For us, it's all about mobile, and it always has been.

I was writing and developing software for alumnae to be able to connect and communicate.

When you hand good people possibility, they do great things.

Embrace your constraints.

Creativity is a renewable resource. Challenge yourself every day. Be as creative as you like, as often as you want, because you can never run out. Experience and curiosity drive us to make unexpected, offbeat connections. It is these nonlinear steps that often lead to the greatest work.

The normal press cycle is to put a company on a pedestal and then knock it down. It's much more interesting that way.

A Twitter update is simple and fast and gets the information and news, and it spreads it very quickly, and it can contain links so you can then link to this whole context of information.