The world is on fire, and I'm doing my best to help steer the firetruck.

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)

It's not about going around trying to stir up trouble. As long as you're honest and you articulate what you believe to be true, somebody somewhere will become your enemy whether you like it or not.

There you go. That ego of yours getting in the way, " I teased."Of what?""The perfect package."He snorted. "Let me tell you, I have the perfect--""Don't be gross.

My favorite Bond films are the really early ones, the first ones in fact, like 'Dr. No' and 'From Russia with Love.'

The future infrared space telescope will cover that area in a much more efficient manner.

There's only one interview technique that matters... Do your homework so you can listen to the answers and react to them and ask follow-ups. Do your homework, prepare.

If you wish to get hold of the invisible you must penetrate as deeply as possible into the visible.

I've never been as happy as I am now, because I followed the signs, I was patient, and I know that this is going to change everything.

Convince people and you win their minds. Inspire people and you win their hearts.

Know when your space is too small for you...and you have to birthed to the next level!

Failure is inevitable; it happens all the time in a complex economy.