We have to all shoulder the responsibility for keeping the planet habitable, or we're going to suffer the consequences - together.

If you look at sort of how politics has divided itself here in this country, the big divide right now is between urban areas, which have become increasingly Democratic, and rural or exurban areas that feel as if they're being ignored.

I don't want my generals or my defense secretary or my national-security team to ever feel deploying weapons to kill people as routine or abstract, even if the targets are bad people.

Nobody wants to put the creditworthiness of the United States in jeopardy. Nobody wants to see the United States default. So we've got to seize this moment, and we have to seize it soon.

And lest we get on our high horse and think this is unique to some other place, remember that during the Crusades and the Inquisition, people committed terrible deeds in the name of Christ. In our home country, slavery and Jim Crow all too often was justified in the name of Christ.

It requires enormous energy for us to cut the African American uninsured rate by a third. A lot of scars.

A lot of countries have advanced capabilities. And given the vulnerabilities of our infrastructure and our economies to digital platforms, we have to be careful in making sure that this doesn't become a lawless, low-level battlefield.