For us, for our children, Africa and its people teach us a powerful lesson -- that we must uphold the inherent dignity of every human being. Dignity -- that basic idea that by virtue of our common humanity, no matter where we come from, or what we look like, we are all born equal, touched by the grace of God. Every person has worth. Every person matters. Every person deserves to be treated with decency and respect. Throughout much of history, mankind did not see this. Dignity was seen as a virtue reserved to those of rank and privilege, kings and elders. It took a revolution of the spirit, over many centuries, to open our eyes to the dignity of every person. And around the world, generations have struggled to put this idea into practice in laws and in institutions.