Iran's Supreme Court has issued a fatwa against the development of nuclear weapons. President [Hassan] Rouhani has indicated Iran will never develop nuclear weapons. I've made clear that we respect the right of the Iranian people to access peaceful nuclear energy in the context of Iran meeting its obligations.

At some fundamental level, religion does not allow for compromise. It insists on the impossible. If God has spoken, then followers are expected to live up to God's edicts, regardless of the consequences. To base one's life on such uncompromising commitment may be sublime; to base our policy making on such commitments would be a dangerous thing.

It is important for us to understand that the way we are perceived in the world is going to make a difference, in terms of our capacity to get cooperation and root out terrorism. And one of the things that I intend to do as president is to restore America's standing in the world.

If we choose to keep those tax breaks for millionaires and billionaires, if we choose to keep a tax break for corporate jet owners, if we choose to keep tax breaks for oil and gas companies that are making hundreds of billions of dollars, then that means we've got to cut some kids off from getting a college scholarship.

In the United States, if 43 percent of eligible voters do not vote, then democracy is weakened.

After my election there was talk of a postracial America. And such a vision, however well intended, was never realistic.

As an elected official who comes from the African-American community, there are some similarities. You are always trying to reconcile your own personal biography and affiliations with the demands of the broader democracy. And you need to make sure you are representing everybody.