It will take time to eradicate a cancer like Isil. And any time we take military action, there are risks involved - especially to the servicemen and women who carry out these missions. But I want the American people to understand how this effort will be different from the wars in Iraq and Afghanistan. It will not involve American combat troops fighting on foreign soil.

I don't regret the excitement, because I do think that it helped us accomplish as much as we did.

Today we're seeing that climate change is about more than a few unseasonably mild winters or hot summers. It's about the chain of natural catastrophes and devastating weather patterns that global warming is beginning to set off around the world.. the frequency and intensity of which are breaking records thousands of years old.

Across the globe there are girls who will one day lead nations, if only we afford them the chance to choose their own destinies.

Now, I've lived long enough to know that race relations are better than they were 10 or 20 or 30 years ago no matter what some folks say. You can see it not just in statistics, you see it in the attitudes of young Americans across the political spectrum. But we're not where we need to be. And all of us have more work to do.

Love and hope can conquer hate.

We have the power to make the world we seek, but only if we have the courage to make a new beginning.