Ultimately, if you think about all the youth that everybody has mentioned here in Africa, if everybody is raising living standards to the point where everybody has got a car and everybody has got air conditioning, and everybody has got a big house, well, the planet will boil over - unless we find new ways of producing energy.

You mention the Navy, for example, and the fact that we have fewer ships than we did in 1916. Well governor, we also have fewer horses and bayonets.

We don't quit. I don't quit. Let's seize this moment.

No development strategy can be based only upon what comes out of the ground, nor can it be sustained while young people are out of work.

My hope is that more and more investors around the world see an opportunity to do business in Greece.

If the global economy is unresponsive to people who feel left behind, if inequality continues to grow, then we could end up seeing more and more of these divisions arise throughout advanced economies around the world.

Medicare in particular, will run out of money, and we will not be able to sustain that program.