This is the moment we must come together to save this planet. Let us resolve that we will not leave our children a world where the oceans rise and fa… - Barack Obama

You know, just over a decade ago, I gave a speech in Boston where I said there wasn’t a liberal America or a conservative America; a black America or a white America -- but a United States of America.

As we do every time this year, Presidents and Prime Ministers converge on this great city to advance important work. But as leaders, we are not the most important people here today. It is the civil society leaders who, in many ways, are going to have the more lasting impact, because as the saying goes, the most important title is not president or prime minister; the most important title is citizen. It is citizens -- ordinary men and women, determined to forge their own future -- who throughout history have sparked all the great change and progress.

That's just how white folks will do you. It wasn't merely the cruelty involved; I was learning that black people could be mean and then some. It was a particular brand of arrogance, an obtuseness in otherwise sane people that brought forth our bitter laughter. It was as if whites didn't know they were being cruel in the first place. Or at least thought you deserved of their scorn.