Does rhetoric history have room for these lines?

This is the conclusion of President Obama’s Nobel Peace Prize acceptance speech, as prepared for delivery:

As Dr. King said at this occasion so many years ago, “I refuse to accept despair as the final response to the ambiguities of history. I refuse to accept the idea that the ‘isness’ of man’s present nature makes him morally incapable of reaching up for the eternal ‘oughtness’ that forever confronts him.”

So let us reach for the world that ought to be—that spark of the divine that still stirs within each of our souls. Somewhere today, in the here and now, a soldier sees he’s outgunned but stands firm to keep the peace. Somewhere today, in this world, a young protestor awaits the brutality of her government, but has the courage to march on. Somewhere today, a mother facing punishing poverty still takes the time to teach her child, who believes that a cruel world still has a place for his dreams.

Let us live by their example. We can acknowledge that oppression will always be with us, and still strive for justice. We can admit the intractability of deprivation, and still strive for dignity. We can understand that there will be war, and still strive for peace. We can do that—for that is the story of human progress; that is the hope of all the world; and at this moment of challenge, that must be our work here on Earth.