We need to send hundreds of millions of dollars down to our public high schools, vocational colleges, and community colleges to begin training people in the green-collar work of the future - things like solar-panel installation, retrofitting buildings that are leaking energy, wastewater reclamation, organic food, materials reuse and recycling.

In the U.S., African- Americans, no matter what we do - when we sit in, when we freedom ride, when we kneel in, whatever it is, the initial response from the public tends to be overwhelmingly negative, because basically we're kind of raining on folks' parades. As time goes on, the Muhammad Ali's and all the people that raised those issues, they then become heroes later when people reflect on the courage they showed and the issues that they raised. And Donald Trump is in danger of being a more and more reviled figure as the years go on.

For me, I think that the struggle around how to deal with Islam in the United States is the defining moral struggle of this half of the new century.

Anybody who's mad should run for something.

We're going to bake this planet, and be a curse to all species, including our own, if we don't find an alternative to carbon-based fuel. That's the #1 problem.

If someone like myself, who is married to a white woman, who has spent my entire life building bridges, can't point out the alt-right whitelash reaction without being accused of being a racial polemecist, we're going to have a big problem.

There seems to be a passive alliance between Vladimir Putin and Donald Trump and that's unprecedented in its form and dangerous in its content, because Russia is our most dangerous geopolitical opponent because of the desires that they have in the Middle East and because of their desire to break up Europe. And in the United States, we spent a lot of blood and a lot of treasure trying to keep Europe intact and democratic, and trying to keep the Middle East from being only influenced by people who are massive fans of [Syrian President] Assad and massive fans of the Iranians.