From David Brooks' April 27, 2007 piece on Barack Obama in the NYT:
Out of the blue I asked, “Have you ever read Reinhold Niebuhr?”
Obama’s tone changed. “I love him. He’s one of my favorite philosophers.”
So I asked, What do you take away from him?
“I take away,” Obama answered in a rush of words, “the compelling idea that there’s serious evil in the world, and hardship and pain. And we should be humble and modest in our belief we can eliminate those things. But we shouldn’t use that as an excuse for cynicism and inaction. I take away ... the sense we have to make these efforts knowing they are hard, and not swinging from naïve idealism to bitter realism.”
My first impression was that for a guy who’s spent the last few months fund-raising, and who was walking off the Senate floor as he spoke, that’s a pretty good off-the-cuff summary of Niebuhr’s “The Irony of American History.” My second impression is that his campaign is an attempt to thread the Niebuhrian needle, and it’s really interesting to watch.