When it comes to climate, we can all make a big difference.

Even if we give first priority to the destruction of terrorist networks, and even if we succeed, there are still governments that could bring us great harm. And there is a clear case that one of these governments in particular represents a virulent threat in a class by itself: Iraq. As far as I am concerned, a final reckoning with that government should be on the table.

The task of saving the earth's environment must and will become the central organizing principle of the post-Cold War world.

Population growth is straining the Earth's resources to the breaking point, and educating girls is the single most important factor in stabilizing that. That, plus helping women gain political and economic power and safeguarding their reproductive rights.

When you have the facts on your side, argue the facts. When you have the law on your side, argue the law. When you have neither, holler.

Today we're dumping 70 million tons of global-warming pollution into the environment, and tomorrow we will dump more, and there is no effective worldwide response. Until we start sharply reducing global-warming pollution, I will feel that I have failed.

We can build a collective civic space large enough for all our separate identities, that we can be E Pluribus Unum - Out of One, Many.