In order for us to compete with China, we've also got to make sure, though, that we're taking - taking care of business here at home. If we don't have the best education system in the world, if we don't continue to put money into research and technology that will allow us to create great businesses here in the United States, that's how we lose the competition.

Now, as the world's largest economy and as the world's second largest emitter, America bears our responsibility to address climate change, and we intend to meet that responsibility.

We are going through historic times, and my vision is a world, first of all, in which America continues to be that one indispensable nation. Because we're taking care of our own people, because our economy is strong and our middle class is growing, and people feel like hard work is rewarded, and we are continuing to expand opportunity and diversity and tolerance and respect.

America is a country of strong families and strong values. My life's been blessed by both.

There are values that transcend race or culture, that move us forward, and there's an obligation for all of us individually as well as collectively to take responsibility to make those values lived.

Our nation honors its unbroken line of fallen heroes - and I see many of them in the audience here today.

Of course I have got concerns. Donald Trump and I differ on a whole bunch of issues.