Every three weeks, we bring online as much solar power as we did in all of 2008...That’s why, over the past six years, we’ve done more than ever before to combat climate change, from the way we produce energy, to the way we use it.

The walls between old allies on either side of the Atlantic cannot stand. The walls between the countries with the most and those with the least cannot stand. The walls between races and tribes; natives and immigrants; Christian and Muslim and Jew cannot stand. These now are the walls we must tear down. We know they have fallen before.

It is the kindness to take in a stranger when the levees break; the selflessness of workers who would rather cut their hours than see a friend lose their job which sees us through our darkest hours. It is the firefighter's courage to storm a stairway filled with smoke, but also a parent's willingness to nurture a child, that finally decides our fate.

Hunger, disease and poverty can lead to global instability and leave a vacuum for extremism to fill. So instead of just managing poverty, we must offer nations and people a pathway out of poverty. And as president I've made development a pillar of our foreign policy, alongside diplomacy and defense.

We've said to the Iranians all along . . . we still remain open to diplomacy. But it's been very clear that the Iranians don't want to engage with us.

Part of people's concern is just the sense that around the world the old order isn't holding and we're not quite yet to where we need to be in terms of a new order that's based on a different set of principles, that's based on a sense of common humanity, that's based on economies that work for all people.

My first job as commander in chief is to keep the American people safe.