You're going to see new processes that utilize waste as the source of energy, so there's no petroleum consumed in the process - that makes the energy balance uniformly positive.

If we did not take action to solve this crisis, it could indeed threaten the future of human civilization. That sounds shrill. It sounds hard to accept. I believe it's deadly accurate. But again, we can solve it.

Airplane travel is nature's way of making you look like your passport photo.

Most people in politics draw energy from backslapping and shaking hands and all that. I draw energy from discussing ideas.

The United States has an absolute, uncompromising commitment to Israel's security and an absolute conviction that Israel alone must decide the steps necessary to ensure that security. That is Israel's prerogative. We accept that. We endorse that. Whatever Israel decides cannot, will not, will never, not ever, alter our fundamental commitment to her security.

George W. Bush promised us a foreign policy with humility. Instead, he has brought us humiliation in the eyes of the world. He promised to restore honor and integrity to the White House. Instead, he has brought deep dishonor to our country and built a durable reputation as the most dishonest president since Richard M. Nixon.

What's really important is how our country gets through Trump period, because nothing's getting done in Washington. Every day it's another set of tweets and another set of controversies. And they're not getting anything done.