I think we should all hope for a Russia that is successful, where its people are employed and the economy is growing and they are having good relationships with their neighbors.

When it comes to our military, what we have to think about is not, you know just budgets, we've got to think about capabilities.

I have seen, the desperation and disorder of the powerless: how it twists the lives of children on the streets of Jakarta or Nairobi in much the same way as it does the lives of children on Chicago 's South Side.

If the critics are right that I've made all my decisions based on polls, then I must not be very good at reading them.

That's what the leadership was teaching me, day by day: that the self-interest I was supposed to be looking for extended well beyond the immediacy of issues, that beneath the small talk and sketchy biographies and received opinions, people carried with them some central explanation of themselves. Stories full of terror and wonder, studded with events that still haunted or inspired them. Sacred stories.

Yes, this is hard. But there should be no question that the United States of America is stepping up to the plate. We recognize our role in creating this problem; we embrace our responsibility to combat it. We will do our part, and we will help developing nations do theirs. But we can only succeed in combating climate change if we are joined in this effort by every nation - developed and developing alike. Nobody gets a pass.

We have come from a time of the large-scale, planned, Al Qaeda-style attacks, to the encouragement of lone wolves: Fort Hood, Chattanooga. To the encouragement of people to act on their own.