The arc of the moral universe may bend towards justice, but it doesn't bend on its own.

I think we all know that world owes an enormous debt to Greece and the Greek people.

Today, we are closer to fulfilling America's promise of economic and social justice because we stand on the shoulders of giants like Dr. King, yet our future progress will depend on how we prepare our next generation of leaders. We must fortify their ladders of opportunity by correcting social injustice, breaking the cycle of poverty in struggling communities, and reinvesting in our schools. Education can unlock a child's potential and remains our strongest weapon against injustice and inequality.

In America, there's a failure to appreciate Europe's leading role in the world. Instead of celebrating your dynamic union and seeking to partner with you to meet common challenges, there have been times where America has shown arrogance and been dismissive, even derisive.

I do think that when you go into red states, they're - so-called red states - I think they're troubled with certain excesses with respect to the Patriot Act, but they're also concerned with making sure we're secure against terrorism.

When people see opportunity, when they have a sense of control of their own destiny, then they're less vulnerable to the propaganda and twisted ideologies that have been attracting young people - particularly being turbocharged through social media.

And then you've got President Clinton who made the case as only he can. After he spoke, somebody sent out a tweet- they said, you should appoint him secretary of explaining stuff. I like that- secretary of explaining stuff. Although, I have to admit, it didn't really say stuff. I cleaned that up a little bit.