We didn't have anything before Twitter that allowed a group of people roaming around a city to communicate instantly, in real time, and in a coordinated way, in a group.

Embrace your constraints. They are provocative. They are challenging. They wake you up. They make you more creative. They make you better.

Success isn´t guaranteed, but failure is certain if you aren´t truly emotionally invested in your work.

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.

Twitter provides a great amount of timely information, but we still need those people to fill out the rest of the story and the context.

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

I think Twitter has brought something totally new to the table.