None of these challenges can be solved quickly or easily. But all of them demand that we listen to one another and work together; that we focus on ou… - Barack Obama

I was also part of a post-Vietnam generation that had learned to question its own government and saw how - from the rise of McCarthyism to support for South Africa's apartheid regime - Cold War thinking had often led America to betray its ideals. This awareness didn't stop me from believing we should contain the spread of Marxist totalitarianism. But it made me wary of the notion that good resided only on our side and bad on theirs, or that a people who'd produced Tolstoy and Tchaikovsky were inherently different from us. Instead, the evils of the Soviet system struck me as a variation on a broader human tragedy: The way abstract theories and rigid orthodoxy can curdle into repression. How readily we justify moral compromise and relinquish our freedoms. How power can corrupt and fear can compound and language can be debased. None of that was unique to Soviets or Communisists, I thought; it was true for all of us. The brave struggle of dissidents behind the Iron Curtain felt of a piece with, rather than distinct from, the larger struggle for human dignity taking place elsewhere in the world - including America.

I am both surprised and deeply humbled by the decision of the Nobel Committee. Let me be clear: I do not view it as a recognition of my own accomplishments, but rather as an affirmation of American leadership on behalf of aspirations held by people in all nations. To be honest, I do not feel that I deserve to be in the company of so many of the transformative figures who've been honored by this prize — men and women who've inspired me and inspired the entire world through their courageous pursuit of peace. But I also know that this prize reflects the kind of world that those men and women, and all Americans, want to build — a world that gives life to the promise of our founding documents. And I know that throughout history, the Nobel Peace Prize has not just been used to honor specific achievement; it's also been used as a means to give momentum to a set of causes. And that is why I will accept this award as a call to action — a call for all nations to confront the common challenges of the 21st century.

No nation is immune to dangerous and disruptive weather patterns, so every nation is going to have to do its part. And the United States is ready to do ours. Last year, I introduced America’s first-ever Climate Action Plan to use more clean energy and less dirty energy, and cut the dangerous carbon pollution that contributes to climate change. So we want to cooperate with countries in Southeast Asia to do the same, to combat the destruction of our forests. We can’t condemn future generations to a planet that is beyond fixing. We can only do that together.