In my first start-up, I had an initial advertising budget of $5 per day total. That would buy us 100 clicks per day. At $5 per day, marketing people scoffed and said that is too small to matter. But if you think about it, to an engineer, 100 real humans everyday giving your product a try means you can really start improving.

The lean startup method is not about cost, it is about speed.

If we stopped wasting people's time, what would they do with it?

The lesson of the MVP is that any additional work beyond what was required to start learning is waste, no matter how important it might have seemed at the time.

We need to reengineer companies to focus on figuring out who the customer is, what's the market and what kind of product you should build.

Products a start-up builds are really experiments…Learning about how to build a sustainable business is the outcome of those experiments [which follow] a three-step process: Build, measure, learn.” “[A startup is] … an organization dedicated to creating something new under conditions of extreme uncertainty.

Our educational system is not preparing people for the 21st Century. Failure is an essential part of entrepreneurship. If you work hard, you can get an 'A' pretty much guaranteed, but in entrepreneurship, that's not how it works.