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

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

I think of Twitter as a messaging system that you didn't know you needed until you had it. Think about when cell phones first started coming out. People said, "Why would I carry my phone around?" And now you'll drive back to your house thirty miles if you forget your cell phone.

The two things I use the most are the MacBook Air and my iPhone. Those are my two most-used gadgets that are dented, scratched and smashed.

Doing startups is all about making mistakes.

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

The determination that led me to create a new sports team taught me an important lesson: opportunity is manufactured.