I think it's important not to start drawing parallels, for example, between Theresa May, a fairly traditional conservative politician, who's now prime minister and Le Pen in France. Those aren't the same and the situation in each country is different.

And we have done more in the two and a half years that I've been in here than the previous 43 Presidents to uphold that principle, whether it's ending 'don't ask, don't tell,' making sure that gay and lesbian partners can visit each other in hospitals, making sure that federal benefits can be provided to same-sex couples.

The Iranians may simply try to run out the clock.

Those who are already feeling the effects of climate change don't have time to deny it - they're busy dealing with it.

America ranks 21st when it comes to math education. We rank 25th when it comes to science. We used to be number one in the proportion of college graduates. We now rank ninth. And at an age where knowledge, skills, are the determinant of how successful we're going to be, unless we reverse that we're going to keep slipping behind economically to a lot of other countries.

Not much happens in Russia without Vladimir Putin.

What I consistently say to young people - I say it in the United States, but I'll say it here in Germany and across Europe: Do not take for granted our systems of government and our way of life. I think there is a tendency, because we have lived in an era that has been largely stable and peaceful, at least in advanced countries, where living standards have generally gone up, there is a tendency I think to assume that that's always the case.