Answers about your mission and answers about your team. You'll attract the employees you need if you can explain why your mission is compelling: not why it's important in general, but why you're doing something important that no one else is going to get done. Pg.121

If you've invented something new but you haven't invented an effective way to sell it, you have a bad business–no matter how good the product. Pg.130

Whoever is first to dominate the most important segment of a market with viral potential will be the last mover in the whole market. At PayPal we didn't want to acquire more users at random; we wanted to get the most valuable users first. ...We needed a smaller niche market segment with a higher velocity of money-a segment we found in eBay. Pg.137

1. The Engineering Question
Can you create breakthrough technology instead of incremental improvements?
2. The timing Question
Is now the right time to start your particular business?
3. The Monopoly Question
Are you starting with a big share of a small market?
4. The People Question
Do you have the right team?
5. The Distribution Question
Do you have a way to not just create but deliver your product?
6. The Durability Question
Will your market position be defensible 10 and 20 years into the future?
7. The Secret Question
Have you identified a unique opportunity that others don't see?
p.153

Zero to One by Blake Masters and Peter Thiel, talks about how successful businesses do what others cannot. Copying what a successful company is doing won't make your company be successful like them. The book talks about how to become a monopoly by finding secrets. Peter says the best place to look for secrets is where no one else is looking, and continues talking about what to do with secrets to protect their monopolies.