When I was a child, I thought of my Delta town as the center of the universe, but now I realize how little I know about the universe. As a child, I thought I was immortal, but now I recognize how limited a time we all have. As a child, success meant scoring A on every exam, but now I take it to mean good health, close family and friends, achieve- ments in my work, and helping others.

Human resources are just tremendous in Egypt but we need the science base.

When they called me with the Nobel call from Secretary General of the Swedish Academy it was twenty minutes to six and he said well that was well hope I'm not disturbing you but I am the Secretary General of the Swedish Academy. Of course you can imagine I was frozen in time when he said that but then he made a very famous statement, something to the effect that this is the last 20 minutes of peace of your life.

We still don't understand how the big bang and evolving all the way to the human species and so on. So all of this is going to be a very, very exciting to the new people.

Scientists contribute in a variety of ways and I don't think I can singular one even including [Albert] Einstein, that I can say that he's the best. We don't work like the best basketball player and the best musician and so on. Science is a collective effort.

I built on the efforts of a previous scientist, others will build on the work I'm doing and if I look at the whole scope from chemistry to biology to physics, it's just the list is too long to mention just one and it's not fair to the others.

Perhaps the most valuable thing he taught me (his father) was that there is no contradiction between devotion to work and enjoyment of life and people