The Holy Koran teaches that whoever kills an innocent is as - it is as if he has killed all mankind.

I've been struck by how hungry we all are for a different kind of politics. So I've spent some time thinking about how I could best advance the cause of change and progress that we so desperately need.

The president and the executive branch are always going to have greater latitude and greater authority when it comes to protecting America because sometimes you just have to respond quickly and not everything that is a danger can be publicized and be subject to open debate, but there have to be some guardrails.

What I could not support was a dumb war, a rash war, a war based not on reason but on passion, not on principle but on politics.

We cannot help but believe that the old hatreds shall someday pass; that the lines of tribe shall soon dissolve; that as the world grows smaller, our common humanity shall reveal itself.

We may have different backgrounds, but we believe in the same dream that says this is a country where anything's possible. No matter who you are. No matter where you come from.

No U.S. soldier ever dies in vain because they're carrying out the missions of their commander in chief. And we honor all the service that they've provided. Our troops have performed brilliantly. The question is for the next president, are we making good judgments about how to keep America safe precisely because sending our military into battle is such an enormous step.