I think that at a certain stage those early ambitions burn away, partly because you achieve something, you get something done, you get some notoriety. And then the particularities of who you are and what your deepest commitments are begin expressing themselves. You're not just chasing the idea of "me" being important, but you, rather, are chasing a particular passion.

To young people: you have to stay encouraged.

We are still the America that does the hard things, that does the great things. We're the nation that always dared to dream. We're the nation that dared to take risks.

Now we're in the midst of not just advocating for change, not just calling for change - we're doing the grinding, sometimes frustrating work of delivering change - inch by inch, day by day.

So Americans understand the costs of war. Yet as a country, we will never tolerate our security being threatened, nor stand idly by when our people have been killed. We will be relentless in defense of our citizens and our friends and allies. We will be true to the values that make us who we are.

Our destiny is not written for us, but by us.

Elections are always a little bit funny. People start saying things and emphasizing differences. After the election, my hope is, is that people start emphasizing what we have in common.