The most common format of music on an iPod is 'stolen.'

If you look at companies with upside potential, Twitter's right there. They've established a brand in a world where it's extremely difficult to establish a brand. It's a global brand, people recognize it, people want to let you know what their Twitter handles are, etc.

We're going to try to do more to communicate the value of activation to customers in addition to making the process simpler and more consistent.

So, I think the output of our innovation is great. We have a culture of self-improvement. I know we can continue to improve. There is no issue. But at the same time, our absolute level of output is fantastic.

I'm going to f---ing bury that guy, I have done it before, and I will do it again. I'm going to f---ing kill Google.

The world is changing, but so is Microsoft.

I didn't leave business school to go bankrupt.