The sooner we put Egypt on the right track, the sooner we would be able to have an Egypt that is modern, that is moderate, and that is acting as a beacon for freedom and liberty across the Arab world.

We must abandon the unworkable notion that it is morally reprehensible for some countries to pursue weapons of mass destruction, yet morally acceptable for others to rely on them for security - and indeed to continue to refine their capacities and postulate plans for their use

My father taught me that you have to stand by your principles.

The simple fact is that there is a limited amount of water on the planet, and we cannot afford to be negligent in its use. We cannot keep treating it as if it will never run out.

Once in a while, I have to pinch myself to remind myself I am Nobel laureate, but that is not part of my work plan every day.

Every country has the right to nuclear technology as long as they use it safely, peacefully and in a secure way.

The Muslim Brotherhood is a religiously conservative group. They are a minority in Egypt. They are not a majority of the Egyptian people, but they have a lot of credibility because all the other liberal parties have been smothered for 30 years.