It was not long after Kenneth Arrow's path-breaking study of social choice, Social Choice and Individual Values, was published in New York in 1951, that my brilliant co-student Sukhamoy Chakravarty drew my attention to the book and to Arrow's stunning "impossibility theorem" (this must have been in the early months of 1952). Sukhamoy too was broadly attracted by the left, but also worried about political authoritarianism, and we discussed the implications of Arrow's demonstration that no non-dictatorial social choice mechanism may yield consistent social decisions.

It was probably a series of biographies of scientists like Pasteur, or even earlier ones — Leeuwenhoek inventing the microscope and Madame Curie. I forget how many others, but it was really just, for me, a fascination to learn about these great heroes. At that time, of course, they were totally inaccessible, almost non-human, to me. It became very interesting to me.

The book that I gift most to people, because it has had a lasting impact on my psyche, is The Warrior Within: The Philosophies of Bruce Lee. I admire Bruce Lee for his physicality, of course, but more so for his deep philosophy, known as “Jeet Kune Do” or “the way of the intercepting fist.” The key element of Jeet Kune Do is its “formless form.” Bruce Lee rejected the rigid rules and structures of Kung Fu and other traditional fighting styles. Instead, he borrowed from several styles to create his own fluid, rapidly efficient technique that was all his. In The Warrior Within, John Little explains how Bruce Lee’s philosophy helped him overcome tremendous challenges and pain to become a man whose originality, intense belief, and commitment I’ve long admired.

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?

My mother would have been proud of my hike. I would love for my own children to have such adventures someday. I hope they do. I hope the word that comes to them when they see a photograph of me in twenty years is go.

When it comes to getting to work, my trick is to conjure my inner-nun-with-a-ruler-in-hand and simply force myself to begin. Beginning is about three-quarters of the battle for me. Once I’m into the work, it’s so much more interesting than anything happening on Facebook.

I’m a binge writer.…I'm not an everyday writer.

My first, most important mentor was Paulette Bates Alden, who taught at the University of Minnesota when I was a junior and senior there. I took my first fiction writing workshop from her. She was teaching in the MFA program and I was an undergrad student and such an upstart that I asked her to let me in the class. She was generous and great.

As much as my writing is so important to me and it’s the work I’m here to do, by far the more important thing to me is the people I love.

I’m a super big fan of list making. I’m like the list queen. And every problem I have ever had has been solved by a list. You write down all the reasons for this, and all the reasons for the other thing, and then there are sub-lists. You can color code them. You can get highlighters. And the answer is there.