When I came into office, the world was divided. Iran was resurgent. Iran is at its weakest point, economically, strategically, militarily, then since - then in many years. And we are going to continue to keep the pressure on to make sure that they do not get a nuclear weapon. That's in America's national interest and that will be the case so long as I'm president.

I think that America has to stand with democracy.

Nothing in life that’s worth anything is easy.

On behalf of the American people, just let me say that we are proud to count Greece as one of our closest allies and one of our greatest friends.

I'm not talking about blind optimism, the kind of hope that just ignores the enormity of the tasks ahead or the road blocks that stand in our path. I'm not talking about the wishful idealism that allows us to just sit on the sidelines or shirk from a fight. I have always believed that hope is that stubborn thing inside us that insists, despite all the evidence to the contrary, that something better awaits us so long as we have the courage to keep reaching, to keep working, to keep fighting.

As opposed to getting into arguments about, well, these folks have been treated fairly so now we're going to be doing things that, very easily in the minds of a lot Americans feel like, "Now I'm being treated unfairly."

Few challenges facing America and the world are more urgent than combating climate change. The science is beyond dispute and the facts are clear.