No single nation should pick and choose which nations holds nuclear weapons. And that's why I strongly reaffirmed America's commitment to seek a world in which no nations hold nuclear weapons.

No one is exempt from the call to find common ground.

There's one issue that will define the contours of this century more dramatically than any other, and that is the urgent and growing threat of a changing climate.

Change is never easy, but always possible.

Keep exploring. Keep dreaming. Keep asking why. Don’t settle for what you already know. Never stop believing in the power of your ideas, your imagination, your hard work to change the world.

So we don't need more top-down economics. We've tried that theory. We've seen what happens. We can't afford to go back to it.

We reaffirm that on days like this, there are no Republicans or Democrats. We are Americans, united in concern for our fellow citizens.