The mystery of summoning up words. Where are they in the mind, in the brain? They appear to be an agency from nowhere. They exist somewhere in our ground or in our air. They come from unknown darkness. From a place we normally don't think about.

I think most of our major challenges are not going to be in the physical field at all. I think they’re going to be in the field of human relations, of getting on with each other, of contributing. People accepting that they have to contribute something, their thoughts, their ideas, maybe even their money, towards producing a world society that is perhaps a little bit more honest and reasonable than it is now.

We still have a long way to go, we still have many obstacles and many challenges to face. It’s far from perfect, and it may never be, but I think as long as we do the best we can to improve conditions, then people will be benefited.

They have a lot of extreme physics going on inside them and scientists use them to test theories of relativity on a cosmic scale. Einstein’s theories are checking out pretty well so far.

Unfortunately, I don’t. My wife now reads fiction. I don’t have the time to read fiction. My wife reads the fiction and summarizes it to me, but I wish at one point I’ll have time again to read fiction. It is a luxury I cannot afford right now.

My father was a lawyer. My mother was a homemaker. My father was president of the Egyptian Bar Association. He was involved very much during the Nasser era — which was one of the most repressive eras in Egyptian history — in fighting for democracy, fighting for human rights, and I think that to a lot of extent shaped my view as to what I wanted to do in the future. I wanted to have a world where people are free to express their views, to have freedom of worship, to have freedom from want, and I saw poverty in Egypt when I grew up. To me, freedom, in the larger sense — to be able to speak, to worship, free from want, free from fear — I think it was a key as to what I thought I would like to do when I grow up.

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.

No. Unfortunately, it hasn’t worked out quite that way. At that time, everybody was euphoric that we will have a new world order, you know, a world order that does not rely on nuclear weapons, nuclear deterrence. Unfortunately, it didn’t work that way. ... We still have thousands of warheads in existence. We still have more than 20 — 30 countries relying on nuclear deterrence for their own survival.

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.

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