Young people: I understand this is important to you, but as you be thinking about climate change, the economy and jobs, war and peace, maybe way at the bottom you should be thinking about marijuana.

We cannot simply look to austerity as a strategy and it is incredibly important that the Greek people see improvements in their daily lives so that they can carry with them the hope that their lives will get better.

I was pretty realistic to people about what we could get done, and the situation we were in, and trying to tamp down expectations. If you listen to my stump speeches, if you listen to what I said at Grant Park, I kept on saying, "Look, this is not just about me, this is not going to happen in one year, or one term, or even one presidency." And we tried to layer into everything we were saying a sense of hope, but also realism.

That may prevent us from getting a deal done, It is there to be had. Whether ultimately Iran can seize that opportunity - we will have to wait and see, but it is not for lack of trying on our part.

The old rules may say we can’t protect our environment and promote economic growth at the same time, but in America, we’ve always used new technologies - we’ve used science; we’ve used research and development and discovery to make the old rules obsolete.

At the constitutional level, what we of course have assured is that women have the ability to make these reproductive decisions up to the point of viability.

In America, we then made a commitment, particularly after World War II with the GI Bill, to massively expand our commitment to college education, and that meant we had more engineers and we had more scientists and that meant we had better technology, which meant that we were more productive and we could succeed in the global marketplace.