The only way to win is to learn faster than anyone else.

When Steve Jobs and Steve Wozniak created Apple computer in a garage in Palo Alto, it heralded the beginning of the PC revolution that ultimately dealt a death-blow to dozens of older companies.

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 goal of a startup is to figure out the right thing to build-the thing customers want and will pay for-as quickly as possible. In other words, the Lean Startup is a new way of looking at the development of innovative new products that emphasizes fast iteration and customer insight, a huge vision, and great ambition, all at the same time.

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

If we do not know who the customer is, we do not know what quality is.

The only person who can put you out of business, in the early days, is yourself.