There are no facts inside the building so get the hell outside.

Using the Product Development Waterfall diagram for Customer Development activities is like using a clock to tell the temperature. They both measure something, but not the thing you wanted.

When you're gone would you rather have your gravestone say, 'He never missed a meeting.' Or one that said, 'He was a great father.'

You need to ask yourself, ‘Where do you want to work: startups, mid-size or large companies?’ If you find yourself debating the ‘startup versus large company’ choice you’ve already chosen the big company. Entrepreneurship isn’t a career choice it’s a passion and obsession.

Disruption on the first day always looks like a toy.

No Plan Survives First Contact With Customers

Business plans are the tool existing companies use for execution. They are the wrong tool to search for a business model.