I think if you look at almost every year under every president over the last, I don't know, 20, 30 years, you're going to be hard-pressed to find a year in which the majority of Americans thought we were on the right track.

It is moments like these that force us to try harder, and dig deeper, and to discover gifts we never knew we had - to find the greatness that lies within each of us.

That is another theme in the book [Dreams from My Father]. How do we exercise more empathy in our public discourse? How do we get the black to see through the eyes of the white? Or the citizen to see through the eyes of the immigrant? Or the straight to see through the eyes of the gay? That has always been a struggle in our politics.

We were very effective, and I was very effective, in shaping public opinion around my campaigns. But there were big stretches, while governing, where even though we were doing the right thing, we weren't able to mobilize public opinion firmly enough behind us to weaken the resolve of the Republicans to stop opposing us or to cooperate with us. And there were times during my presidency where I lost the PR battle.

Don't get cynical. Don't ever think you can't make a difference.

Did I recognize that there was anger or frustration in the American population? Of course I did. First of all, we had to fight back from the worst recession since the Great Depression, and I can guarantee you if your housing values have crashed and you've lost most of your pension and you've lost your job, you're going to be pretty angry.

In Missouri, it's a 50/50 state, so I'm kind of used to half the state being mad at me.