If the only tool we use to analyse what's valuable is a price tag, then those things that don't have price tags begin to look like they have no value.

American democracy has been hacked.

CO2 is the exhaling breath of our civilization, literally... Changing that pattern requires a scope, a scale, a speed of change that is beyond what we have done in the past.

The United States is the only nation that can lead the world toward a solution on climate change.

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.

When politics is too slow, change has to come from culture.

Every day we put another 110 million tons of global warming pollution into the sky as if it's an open sewer, and it's still building up. And the scientists tell us it's a race against time. We've stabilized emissions globally now for the last three years, but they need to start coming down quickly. We've got the momentum, we've got the wind in our sails, we're gonna win this.