I believe marriage is between a man and a woman. I am not in favor of gay marriage. But when you start playing around with constitutions, just to prohibit somebody who cares about another person, it just seems to me that's not what America's about. Usually, our constitutions expand liberties, they don't contract them.

We want our children to live in an America that isn't burdened by debt, that isn't weakened by inequality, that isn't threatened by the destructive power of a warming planet.

The old rules may say we can’t protect our environment and promote economic growth at the same time, but in America, we’ve always used new technologies - we’ve used science; we’ve used research and development and discovery to make the old rules obsolete.

The Iranians may simply try to run out the clock.

Under my plan of a cap and trade system, electricity rates would necessarily skyrocket… Because I’m capping greenhouse gasses, coal power plants, natural gas…you name it…whatever the plants were, whatever the industry was, they would have to retro-fit their operations. That will cost money…they will pass that money on to the consumers.

Even when you go up ramp, and you think about [Franklin D. Roosevelt] wheeling himself up, you know, got a little cigarette holder in his mouth, and it, that, that awe that you feel, that reverence that you feel for the place never entirely leaves.

For the sake of our economy, our security, and the future of our planet, I will set a clear goal as President: in ten years, we will finally end our dependence on oil from the Middle East.