I think the United States is still the indispensable force for positive change and for rule of law and for order and structure.

Confronting climate change is, in the long run, one of the greatest challenges that we face, and you can see this duty or responsibility laid down in scriptures, clearly.

We are all proud of is World War II where we went in, we were decisive, we came to the conclusion that freedom prevailed, and we were heroes.

We need a new approach to national security - a bold, progressive internationalism that stands in stark contrast to the too often belligerent and myopic unilateralism of the Bush Administration.

Not to wax nostalgic about the 1970s, but back then people got upset when they saw injustice. They got tired of seeing our air, land and water polluted. They were shocked when the Cuyahoga River in Ohio was polluted so badly it caught fire. And on one great day 20 million Americans marched all across this land. Politicians had no choice but to take notice.

You don't value families if you force them to take up a collection to buy body armor for a son or daughter in the service.

Assassination, kidnappings and suicide attacks have become too much the standard operating procedure in the Islamic world. So much so that the name of Islam itself has been diminished in the eyes of many people. It is the responsibility of all of us, and particularly those in the Islamic world who care about their religion, to rescue it from its increased association with violence.