In the scientific community, the debate is over, for all intents and purposes, about whether or not the planet is heating and who is causing it. In fact, it's more or less been over since 1995.

Climate change is the single biggest thing that humans have ever done on this planet. The one thing that needs to be bigger is our movement to stop it.

The technology we need most badly is the technology of community, the knowledge about how to cooperate to get things done.

Very few people on earth ever get to say: 'I am doing, right now, the most important thing I could possibly be doing.' If you'll join this fight that's what you'll get to say

what you do every day is what forms your mind and precious few of us can or would spend most days outdoors.

In 50 years, no one will care about the fiscal cliff or the Euro crisis. They'll just ask, "So the Arctic melted, and then what did you do?"

Global warming is no longer a philosophical threat, no longer a future threat, no longer a threat at all. It's our reality.

Advent: the time to listen for footsteps - you can't hear footsteps when you're running yourself.

We've been given a warning by science, and a wake-up call by nature; it is up to us now to heed them.

The real negotiation is between humans on the one hand and chemistry and physics on the other. And chemistry and physics, unfortunately, don't bargain.

We can either save the planet from catastrophic warming, or protect fossil fuel CEOs. Not both. Do the math(s)

Yours(now I'm even losing my name - it was getting shorter and shorter all the time and is now: Yours)

The Harvester was the rustling of autumn leaves, there one minute, gone the next.

These days I smile benignly at the fights that I see in NBA games. There aren't any broken noses or black eyes, which happened quite often when I played.

What is this? Some sort of galactic hyperhearse?

I like to not be too involved in the beginning and during the process so as to keep this fresh look and be able to give constructive recommendation on the final production.

The fundamental evil of the world arose from the fact that the good Lord has not created money enough.

Nothing in life is guaranteed, including government guarantees.

I think I've had more of a variety in what I've done than most actors

I'm not a quick study, so I'm always struggling for my words right up until.

The global response to global terrorism must not endanger fundamental human rights and freedoms.