Above all else, align with customers. Win when they win. Win only when they win.

I’m a big fan of all-you-can-eat plans, because they’re simpler for customers.

When [competitors are] in the shower in the morning, they're thinking about how they're going to get ahead of one of their top competitors. Here in the shower, we're thinking about how we are going to invent something on behalf of a customer.

If you're truly obsessed over customers, it'll cover a lot of errors.

I'm not saying that advertising is going away. But the balance is shifting. If today the successful recipe is to put 70 percent of your energy into shouting about your service and 30 percent into making it great, over the next 20 years I think that's going to invert.

If you're not stubborn, you'll give up on experiments too soon. And if you're not flexible, you'll pound your head against the wall and you won't see a different solution to a problem you're trying to solve.

Failure comes part and parcel with invention. It’s not optional.