One has to have the strength of character to say the time has come to move on... unless you are a king.

The World is not ours to keep. We hold it in trust for future generations.

It's not that easy to quit. When you look back in the American system it is very rare that people quit on issues of principle.

We shall not defeat any of the infectious diseases that plague the developing world until we have also won the battle for safe drinking water, sanitation, and basic health care.

In the 21st Century I believe the mission of the United Nations will be defined by a new, more profound, awareness of the sanctity and dignity of every human life, regardless of race or religion.

I did not always achieve what I set out to do. Nevertheless, my personal example certainly suggests that hands-on experience can be helpful to future leaders.

In an era of global abundance, our world has the resources to reduce dramatically the massive divides that persist between rich and poor, if only those resources can be unleashed in the service of all peoples.