Even as we do all that's necessary to ensure Israel's security, even as we are clear-eyed about the difficult challenges before us, and even as we pledge to stand by Israel through whatever tough days lie ahead, I hope we do not give up on that vision of peace. For if history teaches us anything, if the story of Israel teaches us anything, it is that with courage and resolve, progress is possible. Peace is possible.

We've now got a group of young people in this country who for all practical purposes are American. They grew up here. They've gone to school here. They don't know anything other than being American kids. But their parents may have brought them here without all the proper paperwork - might have brought them here when they were three, might have brought them here when they were five. And so, lo and behold, by the time they finish school, and they're ready to go to college, they find out they can't go to college and, in fact, their status as Americans are threatened.

To those of you mourn the loss of a loved one today, my heart goes out to you. We remember that the blessings that we enjoy as Americans came at a dear cost. Our nation owes a debt to its fallen heroes that we cannot ever fully repay. But we can honor their sacrifice, and we must. We must honor it in our own lives by holding their memories close to our hearts, and heeding the example they set.

One of the great qualities of Chancellor Merkel is that she is steady. She analyzes a situation. She's honest. Sometimes we've had disagreements, but when we do, it's very constructive. And we are consistently open with each other about how we should approach these issues.

I know my country has not perfected itself. At times, we've struggled to keep the promise of liberty and equality for all of our people. We've made our share of mistakes, and there are times when our actions around the world have not lived up to our best intentions.

If we're going to prevent large parts of this Earth from becoming not only inhospitable but uninhabitable in our lifetimes, we're going to have to keep some fossil fuels in the ground rather than burn them and release more dangerous pollution into the sky.

If [black] nationalism could create a strong and effective insularity, deliver on its promise of self-respect, then the hurt it might cause well-meaning whites, or the inner turmoil it caused people like me, would be of little consequence.