Our weird problem is an abundance of resources and a shortage of hard economic reasons not to use them.

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)

Have you ever or are you now involved in espionage or sabotage, or in terrorist activities, or genocide? I think we can put a big yes down for all of the above.

الوقت لا يلئم الجراح، بل الحبtime does not heal wounds, love does

Today is the first day of the rest of your life. The past is history. The future is mysterious. Then tomorrow—this starts all over again.

And let her think I don't care she's with you? No can do. She needs to know what I want

By relieving the brain of all unnecessary work, a good notation sets it free to concentrate on more advanced problems, and in effect increases the mental power of the race.

Hope is not a prediction of the future, it's a declaration of what is possible.

Fine words! I wonder where you stole them.

I'm not quite as limber, but for my peers and my age group, I'm still top notch!

You know, at 35 or at 38 or 40 you really start to see what your body could look like if you just don't do anything all winter long. So that's another motivating factor, our vanity.

Be nice to your hairstylist. It's an instant gratification! It doesn't matter how badly their day has gone, in that moment they feel amazing. And the hairdresser has made them feel that way.