Nonviolence is one of those immutable principles that we cannot and must not deviate from.

I think it is an imperfect arms control agreement. It's not a friendship treaty. But when America gives her word, we have to live up to it and work with our allies.

Sen. McCain and Gov. Palin are sowing the seeds of hatred and division, and there is no need for this hostility in our political discourse.

To question the legitimacy of the next United States president, you know, and you're worried about a tweet that says, hey, why don't you get back to work instead of questioning my legitimacy? Too bad.

When people tell me nothing has changed, I say come walk in my shoes and I will show you change.

I remember being at the church a few hours after the church was bombed in Birmingham, the 16th Street Baptist Church. It was very hard and very difficult to stand on that corner across the street from the church. Or to go Mississippi and search for the three civil rights workers who came up missing. There is a lot of trauma.

We all remember that [Donald] Trump was one of the leaders of the so-called birther movement trying to delegitimize the presidency of our first African-American president Barack Obama, which is an outrage.