Entrepreneurs can't forecast accurately, because they are trying something fundamentally new. So they will often be laughably behind plan - and on the brink of success.

The minimum viable product is that version of a new product which allows a team to collect the maximum amount of validated learning about customers with the least effort.

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.

Leadership requires creating conditions that enable employees to do the kinds of experimentation that entrepreneurship requires.

Most companies are busy making their products worse, not better. Updating is almost always a disaster.

Every startup has a chance to change the world, by bringing not just a new product, but an entirely new institution into existence.

A pivot is a change in strategy without a change in vision.