Have a sense of humor to break the tension in times of great toil.

Bad news isn't wine. It doesn't improve with age.

Today I can declare my hope and declare it from the bottom of my heart that we will eventually see the time when that number of nuclear weapons is down to zero and the world is a much better place.

Have a vision; but it's not enough to have a vision, you have to communicate that vision to others. You have to communicate it to people who work with you and for you. You have to communicate it to the world leaders with whom you come in touch.

Some people naturally have a sense of empathy and an understanding of how to bring their followers to do things. They become great politicians.

Remain calm, be kind.

If a leader doesn't convey passion and intensity then there will be no passion and intensity within the organization and they'll start to fall down and get depressed.