As Americans, we can take enormous pride in the fact that courage has been inspired by our own struggle for freedom, by the tradition of democratic law secured by our forefathers and enshrined in our Constitution. It is a tradition that says all men are created equal under the law and that no one is above it.

Historically, when a previous US administration enters into an agreement, it carries forward into the future administration.

We are the change we have been waiting for.

I know that there are those who disagree with the overwhelming scientific evidence on climate change. But here's the thing -- even if you doubt the evidence, providing incentives for energy-efficien cy and clean energy are the right thing to do for our future -- because the nation that leads the clean energy economy will be the nation that leads the global economy. And America must be that nation.

Today’s decision was a victory for people all across this country whose lives will be more secure.

American leadership is not simply a matter of going it alone and bearing all of the burden ourselves.

We need to steer clear of this poverty of ambition, where people want to drive fancy cars and wear nice clothes and live in nice apartments but don't want to work hard to accomplish these things. Everyone should try to realize their full potential.