We are engaging in the diplomatic efforts that are required within Iraq among the Shia, the Sunni and the Kurd, among friends, like Egypt, and Turkey and Saudi Arabia, but also enemies like Iran and Syria. They have to have buy-in into that process.

The thing about hip-hop today is it's smart, it's insightful. The way they can communicate a complex message in a very short space is remarkable.

In the white community, the path to a more perfect union means acknowledging that what ails the African-American community does not just exist in the minds of black people; that the legacy of discrimination - and current incidents of discrimination, while less overt than in the past - are real and must be addressed.

In fact, the American people did decide, back in 2012, when they elected me president of the United States.

The American people recognize that their careers or their kids' careers are going to have to be more dynamic. That they might not be working at a single plant for 30 years. That they might have to change careers. They might have to get more education. They might have to retool or retrain. And I think the American people are game for that.

The walls between old allies on either side of the Atlantic cannot stand. The walls between the countries with the most and those with the least cannot stand. The walls between races and tribes; natives and immigrants; Christian and Muslim and Jew cannot stand. These now are the walls we must tear down. We know they have fallen before.

One of the great strengths of the United States is... we have a very large Christian population - we do not consider ourselves a Christian nation or a Jewish nation or a Muslim nation. We consider ourselves a nation of citizens who are bound by ideals and a set of values.