Eric Ries

In the industrial world we have the problem of having more productive capacity than we know what to do with. That's at the root of the unemployment crisis: we've got so productive at making things, we don't require people to be involved in making the basics of life any more. Or nearly as many people.

Science and vision are not opposites or even at odds. They need each other. I sometimes hear other startup folks say something along the lines of: 'If entrepreneurship was a science, then anyone could do it.' I'd like to point out that even science is a science, and still very few people can do it, let alone do it well.

Building the right product requires systematically and relentlessly testing that vision to discover which elements of it are brilliant, and which are crazy.

Famous pivot stories are often failures but you don't need to fail before you pivot. All a pivot is is a change is strategy without a change in vision. Whenever entrepreneurs see a new way to achieve their vision - a way to be more successful - they have to remain nimble enough to take it.

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.

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.

You know how people always talk about how vision is the key to entrepreneurship and perseverance and really seeing what other people don't see? We can actually redeem a fair amount of that folk wisdom.

Nowadays people talk about PayPal's founders as prescient geniuses who would inevitably change the world. It was, however, not so obvious that PayPal would taste its first major success by helping people sell Beanie Babies on eBay. But they had a vision, a hope, and the perseverance to try multiple iterations until they got it right.

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

Most phenomenal startup teams create businesses that ultimately fail. Why? They built something that nobody wanted.

There's nothing wrong with raising venture capital. Many lean startups are ambitious and are able to deploy large amounts of capital. What differentiates them is their disciplined approach to determining when to spend money: after the fundamental elements of the business model have been empirically validated.

The reality is the Lean Startup method is not about cost, it is about speed. Lean startups waste less money, because they use a disciplined approach to testing new products and ideas.