Except in very narrow cases, where there's breakthrough science that needs patent production, worrying about competitors is a waste of time. If you can't out iterate someone who is trying to copy you, you're toast anyway.

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.

Vanity metrics are the numbers you want to publish on TechCrunch to make your competitors feel bad.

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.

As you consider building your own minimum viable product, let this simple rule suffice: remove any feature, process, or effort that does not contribute directly to the learning you seek.

The big question of our time is not Can it be built? but Should it be built? This places us in an unusual historical moment: our future prosperity depends on the quality of our collective imaginations.

I asked all of our recruiters to give me all resumes of prospective employees with their name, gender, place of origin, and age blacked out. This simple change shocked me, because I found myself interviewing different-looking candidates - even though I was 100% convinced that I was not being biased in my resume selection process.