The rule of reason is the true sovereign in the American system.

The climate crisis requires a bottom-up, grassroots demand for solutions because the elites in many parts of the world are under the influence of old industry.

Anyone who deals with the climate crisis has an internal dialogue between hope and despair, because the challenge is so huge and the danger is so great and the stakes are so high. But I have always resolved that in favour of hope, and actually I'm more hopeful now than I was a decade ago when the solutions were visible on the horizon, but you had to seek reassurance that the technology experts that they're coming, they'll be here.

When you have the facts on your side, argue the facts. When you have the law on your side, argue the law. When you have neither, holler.

I feel passionate about solving the climate crisis.

We have a planetary emergency. We have to find a way to create, in the generation of those alive today, a sense of generational mission.

Feb. 9, 1999 Dear Friend, Without your previous support, Bill Clinton and I would not have won our victories for the American people in 1992 and 1996. ... And to win in 2000, I need you by my side.