In this remarkable time for the world, I refuse to believe it's time to stop believing in the possibilities of our remarkable country. I refuse to accept the downsizing of the American Dream. I refuse to bet against American entrepreneurial spirit and American ingenuity.The competition's tough, and it requires us to be tougher - tough-minded, never hard hearted.

The consequences of a crime should not be out of proportion to the crime itself.

President Obama has made it his mission that we welcome our troops home with care, and concern, and the respect they deserve. That is how an exceptional nation says "thank you" to its most exceptional men and women.

I get always a little uptight when I hear politicians say how exceptional America is.

I met with many of - a number of [Syrian] refugees in Berlin the other day, and I was struck by how educated, intelligent, and patriotic they are. They want to go back. They love their country. And there are so many of them still in Jordan and in refugee camps in Lebanon and in Turkey, that if you could create the climate within which they could begin to come back, I believe there is such a history of secularism within Syria, even tolerance within Syria, that if we can deal with ISIL, yes. That's the key. And with ISIL there, not a chance.

When we walk away from global warming, Kyoto, when we are irresponsibly slow in moving toward AIDS in Africa, when we don't advance and live up to our own rhetoric and standards, we set a terrible message of duplicity and hypocrisy.

Sunni are the majority of the [Syria], 60 to 65 percent. They've been ruled by [Bashar] Assad, who represents a minority Alawite element, which is about 12, 13 percent. And because of the choices Assad made, it's very difficult to see how you resolve this without buy-in from the Sunni world.