It is our generation's task, then, to reignite the true engine of America's economic growth - a rising, thriving middle class.

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.

For the world has changed, and we must change with it

I think the Turks' willingness to take seriously action on the borders to stop the flow of foreign fighters joining ISIL is significant.

We all want the Greek people to prosper, to be able to provide a good life for their families and their children. That would be good for Greece, that would be good for the European Union, good for the United States, and ultimately, good for the world.

I think, the argument sometimes that I've had with folks who are much more interested in sort of race-specific programs is less an argument about what is practically achievable and sometimes maybe more an argument of "We want society to see what's happened, and internalize it, and answer it in demonstrable ways." And those impulses I very much understand.

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