Leadership requires creating conditions that enable employees to do the kinds of experimentation that entrepreneurship requires.

The goal of every startup experiment is to discover how to build a sustainable business around that vision.

Sustainable growth is characterized by one simple rule: New customers come from the actions of past customers.

There is no greater country on Earth for entrepreneurship than America. In every category, from the high-tech world of Silicon Valley, where I live, to University R&D labs, to countless Main Street small business owners, Americans are taking risks, embracing new ideas and - most importantly - creating jobs.

The United States is locked in a new arms race for that most precious resource - the future entrepreneurs upon whom economic growth depends. Substantial research shows that immigrants play a key role in American job creation.

I would say, as an entrepreneur everything you do - every action you take in product development, in marketing, every conversation you have, everything you do - is an experiment. If you can conceptualize your work not as building features, not as launching campaigns, but as running experiments, you can get radically more done with less effort.

The Lean Startup has evolved into a movement that is having a significant impact on how companies are built, funded and scaled.