In the end, climate change is a math problem.

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)

And yet you thought he was the one? Imagine a lifetime without laughter.

Looking and not finding is certainly one of the most frustrating ways to spend time.

The author takes the position that the consumer pays the tax, and as such every individual of the social order should be given unlimited opportunity to make the most of himself.

If you believe that no one was ever corrupted by a book, you have also to believe that no one was ever improved by a book.

We need to define gentrification as separate from the process of displacement.

Never focus on what you can’t do - only imagine everything you could.

I think that sometimes people don't think before they speak. And even a small comment can make or break someone's day.

no one ever really leaves Hollywood. No one really leaves unless they are called away by God. Even then, the impulse would be to come back again and make a movie about the experience.

The idea of 10 dimensions might sound exciting, but they would cause real problems if you forget where you parked your car.

You could sometimes see her twelfth year in her cheeks, or her ninth sparkling from her eyes; and even her fifth would flit over the curves of her mouth now and then.