All businesses need to be young forever. If your customer base ages with you, you're Woolworth's.

If you look at academic studies, you can see that stock prices are most closely correlated with cash flow. It's such a straightforward number. Cash flow is what will drive shareholder returns.

If you have a business model that relies on customers being misinformed, you better start working on changing your business model.

And I still buy books at B&N, Borders and Elliot Bay ... I probably shouldn't admit this. But I don't care. I love great bookstores.

If you can't feed a team with two pizzas, it's too large.

People don't want gadgets, they want services.

We can't be in survival mode. We have to be in growth mode.