I think we definitely want to focus on the simplicity aspect because it's something that's built into the culture even here at Twitter. Constraints inspire creativity.

I got an idea: people like news why don't we write the news down on a piece of paper, and we'll gas them up and drive them to everyone's house. I mean, if you were going to say that now, it doesn't sound like a great idea, because there are other ways you can distribute the news.

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.

Creativity is an infinitely renewable resource - you are not going to run out of it - so don't be afraid to use it.

I mean, even when it's really simple, there's so much amazing beautiful creativity that can come out of that.

Willingness to take risks is the path to success.

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