In the last 24 years that I have played for India I have made new friends, and before that I have had friends from my childhood. They have all had a terrific contribution. As and when I have called them to come and bowl to me at the nets, they have left their work aside to come and help me. Be it joining me on holidays and having discussions with me on cricket, or how I was a little stressed and wanting to find a solution so I can perform better. All those moments my friends were with me. Even for when I was injured, I would wake up in the morning because I couldn't sleep and thought that my career was over because of injuries, that is when my friends have woken up at 3 o'clock in the morning to drive with me and make me believe that my career was not over. Life would be incomplete without all those friends.

No, because I started working on ribosomes when I was a post doc, in 1978, when it would have been impossible, really, to solve it. But, it was just a fundamental problem in biology. And we felt, no matter, anything we do to chip away at the problem would be useful. So it was more that that attracted me. And I think the fact that it was large and kind of difficult to come to grips with, yes, it was attractive. Really what was attractive was that it was a fundamental problem.

But from day one, I really wanted to build the kind of company my father never got a chance to work for. A company that honors and respects the dignity of work and the dignity of all men and all women. And that is why we became the first company in all of America to provide comprehensive health insurance 30 years ahead of the affordable care act, as well as ownership in the form of stock options for all of our employees, including part-time people because it is my firm belief that success in business and in life is best when it's shared.

Her story is why I dedicate the Nobel Peace Prize money to the Malala Fund, to help give girls quality education, everywhere, anywhere in the world and to raise their voices. The first place this funding will go to is where my heart is, to build schools in Pakistan—especially in my home of Swat and Shangla.

Getting rich slow isn't actually slower. It's slower in year one, but it might be faster in year seven.

When we started Airbnb, no one wanted to invest. I felt like a failure so many days. It was small, it wasn't growing... A sane person probably would have quit. But we kept going through obscurity, through rejection. We couldn't raise money — but over time, it started growing.