In Nelson Mandela's famous speech, I am prepared to die, he stated:

"During my lifetime I have dedicated myself to this struggle of the African people. I have fought against white domination, and I have fought against black domination. I have cherished the ideal of a democratic and free society in which all persons live together in harmony and with equal opportunities. It is an ideal which I hope to live for and to achieve. But if needs be, it is an ideal for which I am prepared to die."

I am very happy he didn't have to die to make the point. South Africa is a living example of what one man can accomplish toward humanitarian goals.