When you receive criticism from well-meaning people, it pays to ask, ‘Are they right?’ And if they are, you need to adapt what they’re doing. If they’re not right, if you really have conviction that they’re not right, you need to have that long-term willingness to be misunderstood. It’s a key part of invention.

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

If you invent frequently and are willing to fail, then you never get to that point where you really need to bet the whole company.

I think there are going to be a bunch of tablet-like devices. It's really a different product category.

Market leadership can translate directly to higher revenue, higher profitability, greater capital velocity and correspondingly stronger returns on invested capital.

A company shouldn't get addicted to being shiny, because shiny doesn't last.

If you only do things where you know the answer in advance, your company goes away.