Eric Ries

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

If you cannot fail, you cannot learn.

The big question of our time is not 'Can it be built?' but 'Should it be built?'

A startup is a human institution designed to create a new product or service under conditions of extreme uncertainty.

Success is not delivering a feature; success is learning how to solve the customer's problem.

We must learn what customers really want, not what they say they want or what we think they should want.

Startup success can be engineered by following the right process, which means it can be learned, which means it can be taught.