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Quite frankly, there is no answer to climate change without substantially, dramatically, increasing the amount of renewable energy in the global energy system.

We will move to a low-carbon world because nature will force us, or because policy will guide us. If we wait until nature forces us, the cost will be astronomical.

This is probably the most difficult task we have ever given ourselves, which is to intentionally transform the economic development model, for the first time in human history.

I still do not understand why we don't have people on the streets every single day raising their voices for climate.

We cannot ask others to do what we have not done ourselves.

We have to get to the point where each individual, each corporation, each community chooses low carbon, because it makes fundamental sense. It should become a no-brainer.

When you have a vision of where you need to go, it sounds utopian. But when you get to the tipping point, your understanding switches.

We shouldn't have stupid cars that use liquid fossil fuels. Come on, how outmoded is that? We have to get to the point where this is no longer a part of our experience.

We are just about to cross the 400 parts per million threshold.

Think global, act local.

I've always said that idleness dulls the spirit. We have to keep the brain busy, or at least the hands if we don't have a brain.

The idea that media is there to educate us, or to inform us, is ridiculous because that's about tenth or eleventh on their list.

To build means to make architecture real on the borders of knowledge.

Only fools use their mouth to speak. A smart man uses his brain, and a wise man uses his heart.

If you wait until you feel like doing something, you will likely never accomplish it.

Love never doubts or suffers or cries. Love shows no fear, love tells no lies.

For those of us who have a ground of knowledge which we cannot transmit to outsiders, it is perhaps more profitable to act fearlessly than to argue.

I was not offended, my love. An insult is like a drink; it affects one only if accepted. And pride is too heavy baggage for my journey.

There's always stress involved in any genre or art form, there's always going to be a struggle. If there's no struggle, you wouldn't do anything. What are you going do? Retire?

Damage hardens us all. It will harden you too, when it finds you—and it will find you