Greatest risk is not development of new product, but development of customers and markets

Startups don’t fail because they lack a product; they fail because they lack customers and a profitable business model.

In a startup no facts exist inside the building, only opinions.

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

Unless you have tested the assumptions in your business model first, outside the building, your business plan is just creative writing.

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

At the end of the day, you can decide whether you want to be an employee with a great attendance record, getting promoted to ever better titles and working on interesting projects - or whether you want to attempt to do something spectacular - this be or do should be a question you never stop asking yourself - for the next 20 years, and beyond.