I think we want to see new voices and new ideas emerge - that's part of the reason why term limits are a really useful thing.

Environmentalism is not an upper-income issue, it's not a white issue, it's not a black issue, it's not a South or a North or an East or a West issue. It's an issue that all of us have a stake in. And if I can do anything to make sure that not just my daughter but every child in America has green pastures to run in and clean air to breathe and clean water to swim in, then that is something I'm going to work my hardest to make happen.

Cool, logical, big-eared and level-headed, the center of Star Trek's optimistic, inclusive vision of humanity's future. I loved Spock.

Islam has a proud tradition of tolerance.

Losing the PR battles, particularly about healthcare, translated into losing his Democratic majorities in Congress, beginning with a Republican landslide in the midterm election of 2010.

Because of you, in Afghanistan we've broken the momentum of the Taliban. Because of you, we've begun a transition to the Afghans that will allow us to bring our troops home from there. And around the globe, as we draw down in Iraq, we have gone after al Qaeda so that terrorists who threaten America will have no safe haven, and Osama bin Laden will never again walk the face of this Earth.

Peace depends upon compromise among peoples who must live together long after our speeches are over, long after our votes have been tallied.