Ban Ki-moon

We have a legal and moral obligation to rid our world of nuclear tests and nuclear weapons. When we put an end to nuclear tests, we get closer to eliminating all nuclear weapons. A world free of nuclear weapons will be safer and more prosperous.

Within the U.N. itself, I have appointed a record number of women to high-level positions. I did not fill jobs with women just for the sake of it - I looked for the best possible candidate, and I found that if you strip away discrimination, the best possible candidate is often a woman.

Did you know there's a difference between being busy and being fruitful? Did you ever stop to think that just being busy - running around in circles all day but not accomplishing anything - is the same as wasting your time? It's frustrating to expend so much energy and time and not have any fruit from your effort!

And I think that still is true of this business - which is basically research and development - that you probably spend more time in planning and training and designing for things to go wrong, and how you cope with them, than you do for things to go right.