The world would say it was failure. But the difference was so small between us. They played great, but they lost.

It was like switching out the engines mid-flight. I remember the day we turned on this free service, had we probably gone on for about six more months, I think we might have died as a company. That was a defining moment and that was as late as 2013. I think every great company has at least three near-death experiences.

Every bad thing that’s happened, apart from Mum and Dad dying, it’s always led to something better. Always.

My contemporaries were more upset about the Nobel than I was not to be recognised. One of them labelled it the 'No-Bell' prize! But it was fine by me. There's no Nobel Prize in astronomy and I was really proud that it was my stars that had convinced the prize committee that there was good physics in astrophysics.

Well, many. I think Steinbeck, for example, was one of my favorites, Somerset Maugham, Hemingway. Quite a few.

I think it’s more modeling. I never bring in my children and say, “Listen, these are the values you should follow in life.” I think it’s a modeling by my wife and me. I think we give them a good life. They saw how we go through life: a difficult time, a hard time, good time. I am very happy. I think they are good kids. If I have hope, it’s because I look at my children.

My sister-in-law and I are working towards the same goal, through different paths: the security of the human family.

I have a lot of respect and admiration for President Carter. It was a delight when I got the Nobel Peace Prize to get a letter from him. It meant a lot to me, getting that letter from a man who is my idol in many ways. ... He always has the courage to express his views, his convictions. He doesn’t hesitate to run against the current. He has always had a moral certitude. He looks at the ethics and morality of his action, and that’s key. Whatever we do in life, whether privately or publicly, we need to have a compass. We need to be sure that what we do is not only good for us, but good for the people at large. That’s ethics. That’s morality. I think we need to always know that our work is not just good for us in the short term, but it’s morally correct. And when I talk about morality, I don’t talk about religion. I talk about a moral code, a moral value, which I think we all have, being honest, being fair, being correct. These are values I think we all share.

One of my mentors, Tom Frank, a professor of law at NYU, he was really instrumental in making me understand that we need to look at the global picture, and we always need to not take anything for granted, but go very much through a process of critical thinking before we formulate our views. So he was, I think, instrumental in shaping my views as to how to pursue my career in the future.

For them, home is the world. For them, every human being is just one member of that large human family you have. ... if we have more children like mine, in my view, we will not have war.