Change the world. Build a business. Have fun.

After high school, I enrolled at the University of Nebraska at Lincoln, but I stayed only a year and a half. I felt college was a waste of time; I wanted to start working.

When I meet with the founders of a new company, my advice is almost always, ‘Do fewer things.’ It’s true of partnerships, marketing opportunities, anything that’s taking up your time. The vast majority of things are distractions, and very few really matter to your success.

Take care of yourself: When you don't sleep, eat crap, don't exercise, and are living off adrenaline for too long, your performance suffers. Your decisions suffer. Your company suffers. Love those close to you: Failure of your company is not failure in life. Failure in your relationship is.

Assume the best but hire paranoid people.

Take a human desire, preferably one that has been around for a really long time Identify that desire and use modern technology to take out steps.

Every major communication tool on the Internet has spam and abuse problems. All email services, blogging services and social networks have to dedicate a significant amount of resources and time to fighting abuse and protecting their users.