As I was starting my academic career, it was almost considered to be a negative signal to your career to get involved in politics ... But to me that was a sign you were doing something useful.

On the one hand, we have people that say the aid system is so broken we need to throw it out. And on the other we have people who say the problem is that we need more aid. ... Both sides are right. And the problem is that neither side is listening to the other. Even more problematic, they're not listening to poor people themselves.

Don’t write in public places. In the early 1990s I went to live in Paris. The usual writerly reasons: back then, if you were caught writing in a pub in England, you could get your head kicked in, whereas in Paris, dans les cafés . . . Since then I’ve developed an aversion to writing in public. I now think it should be done only in private, like any other lavatorial activity.

The press and the public have created an image of Ed Hillary, hero and explorer which simply doesn’t exist. They’ve painted a picture of me as a heroic type, full of enormous courage, tremendous strength, undying enthusiasm and all the rest of it. But it’s all really just a story, that’s been written up in the newspapers. I’m a person, as I’ve said, of modest abilities, with a good deal of determination, and I do quite a lot of planning ahead. With careful planning and good motivation, I think you can often achieve things that other much more talented people would probably do much more easily.

And this is where, a couple of years before I had become CEO, I had read this book by Carol Dweck out of Stanford [University] called “Mindset,” which was more in relation to my kids. And the simple concept in that book, which I loved a lot, was it's better to be a learn-it-all even if the know-it-all has more innate capability, because the learn-it-all ultimately will do better. And I said, well, that applies to CEOs. That applies to companies made up of people. And I said: What if we introduce that as the meme to have the cultural dialogue at Microsoft?