One of the challenges over the last decade is America has done experiments in nation building in places like Iraq and Afghanistan and we've neglected, for example, developing our own economy, our own energy sectors, our own education system. And it's very hard for us to project leadership around the world when we're not doing what we need to do.

I think there are hard-liners inside of Iran that think it is the right thing to do to oppose us, to seek to destroy Israel, to cause havoc in places like Syria or Yemen or Lebanon, if they don't change at all, we're still better off having the deal.

Congress should fund research on the effects that violent video games have on young minds... We don't benefit from ignorance. We don't benefit from not knowing the science.

I'm trying to move an aircraft carrier here, I'm not just steering the speedboat.

I want people around the world to hear me. To all those who would do us harm, no act of terror will go unpunished. It will not dim the light of the values that we proudly present to the rest of the world. No act of violence shakes the resolve of the United States of America.

Where you are right now doesn't have to determine where you'll end up.

Two-thirds of Americans believe that, after a baby's heart is beating and they can feel pain, that they need some protection.