China is very entrepreneurial but has no rule of law. Europe has rule of law but isn't entrepreneurial. Combine rule of law, entrepreneurialism and a generally pro-business policy, and you have Apple.

One of the advantages of moving quickly is if you do something wrong you can change it.

Whatever you're selling, storage or networking or security, you're going head to head with the incumbent players.

The transformation of Apple is probably the biggest tech story of the last 15 years.

Newspapers with declining circulations can complain all they want about their readers and even say they have no taste. But you will still go out of business over time. A newspaper is not a public trust - it has a business model that either works or it doesn't.

The smartphone revolution is under-hyped, more people have access to phones than access to running water. We've never had anything like this before since the beginning of the planet.

At a certain point in your career - I mean, part of the answer is a personal answer, which is that at a certain point in your career, it becomes more satisfying to help entrepreneurs than to be one.