A startup is a human institution designed to create a new product or service under conditions of extreme uncertainty.
Every moment in business happens only once. The next Bill Gates will not build an operating system. The next Larry Page or Sergey Brin won't make a search engine. If you are copying these guys, you aren't learning from them.
The most important thing I learned as an entrepreneur was that the moments that mattered most were the moments that were the hardest.
The fatal assumption is: if you understand the technical work of a business, you understand a business that does that technical work.
Your business is not your life. Your business and your life are two totally separate things.
The cowards never started and the weak died along the way. That leaves us, ladies and gentlemen. Us.
Let everyone else call your idea crazy ... just keep going. Don't stop. Don't even think about stopping until you get there.
Learn to sell. Learn to build. If you can do both, you will be unstoppable.
You aren't allowed to tell them what their problem is, and in return, they aren't allowed to tell you what to build.
Don't hire to grow your business. Hire to buy back your time.
When you combine a culture of discipline with an ethic of entrepreneurship, you get the magical alchemy of great results.
The best entrepreneurs know this: every great business is built around a secret that's hidden from the outside.