My plan after office is to get up and spend that entire first day helping my wife move into her new senatorial office.

Through scientific discovery and technological innovation, we enlist the forces of the natural world to solve many of the uniquely human problems we face - feeding and providing energy to agrowing population, improving human health, taking responsibility for protecting the environment and the global ecosystem, and ensuring our own Nation's security. Scientific discoveries inspire and enrich us, teaching us about the mysteries of life and the nature of the world.

For four years we've been cooperating exhaustively

We Democrats think the country works better with a strong middle class, real opportunities for poor people to work their way into it and a relentless focus on the future, with business and government working together to promote growth and broadly shared prosperity. We think "we're all in this together" is a better philosophy than "you're on your own."

Thomas Jefferson believed that to preserve the very foundations of our Nation, we would need dramatic change from time to time. Well, my fellow Americans, this is our time. Let us embrace it.

No one who has lived through the second half of the 20th century could possibly be blind to the enormous impact of exchange programs on the future of countries.

What we should be doing [in US] is accelerating every year our efforts to reduce our greenhouse gas emissions, have a cleaner energy future, have much more energy conservation. And this won't hurt anybody. This will create a new economy for America, if we've got the discipline to do it.