I decided to become a community organizer ... Change won't come from the top, I would say. Change will come from a mobilized grass roots.

I make no apologies for being reasonable.

You don't like dealing with somebody who denies horrible things happening to your people or threatens future horrible things to your people.

You can't entirely compare between the United States and Greece for a range of reasons, not just because of the size of the economy.

The issue of climate change is one that we ignore at our own peril. There may still be disputes about exactly how much we're contributing to the warming of the earth's atmosphere and how much is naturally occurring, but what we can be scientifically certain of is that our continued use of fossil fuels is pushing us to a point of no return. And unless we free ourselves from a dependence on these fossil fuels and chart a new course on energy in this country, we are condemning future generations to global catastrophe.

Some heinous crimes justify the ultimate punishment.

I am going to be able to present to the incoming administration a country that is stronger. A federal government that is working better and more efficiently. A national security apparatus that is both more effective and truer to our values. Energy policies that are resulting in not just less pollution, but also more jobs.