The shift to a cleaner energy economy wont happen overnight, and it will require tough choices along the way. But the debate is settled. Climate change is a fact.

Your ability to let go is part of the duty that you have.

I see tragedy and comedy and pain and irony and all that stuff. But in the end I think life is fascinating, and I think people are more good than bad, and I think that the possibilities of prog­ress are real.

I invigorated the grassroots in the Republican Party as well as the Democratic Party.

Generally the Constitution is a charter of negative liberties, says what the states can't do to you, says what the federal government can't do to you. But it doesn't say what the state or federal government must do on your behalf.

I still don't feel responsible for what Donald Trump says or does. But I do feel a responsibility as president of the United States to make sure that I facilitate a good transition and I present to him as well, as the American people my best thinking, my best ideas about how you move the country forward. To speak out with respect to areas where I think the Republican party's wrong, but to pledge to work with them on those things that I think will advance the causes of security and prosperity and justice and inclusiveness in America.

What Washington needs is adult supervision.