Almost everywhere, climate change denial now looks as stupid and as unacceptable as Holocaust denial.

August 28th 2012. Remember that date. It marks the day when the world went raving mad.

Nobody ever rioted for austerity.

Progress is measured by the speed at which we destroy the conditions that sustain life.

When you warn people about the dangers of climate change, they call you a saint. When you explain what needs to be done to stop it, they call you a communist.

The Christians stole the winter solstice from the pagans, and capitalism stole it from the Christians.

If wealth was the inevitable result of hard work and enterprise, every woman in Africa would be a millionaire.

In motivating people to love and defend the natural world, an ounce of hope is worth a ton of despair.

Like other lifeforms, we [humans] exist only to replicate ourselves.

Change arises from conviction. Stop voting in fear. Start voting for hope.

Faced with a choice between the survival of the planet and a new set of matching tableware, most people would choose the tableware.

It is a kind of spiritual snobbery that makes people think they can be happy without money.

Yesterday is not ours to recover, but tomorrow is ours.

I grew up in a small, strictly-Catholic fishing village on the coast of Wales. The people there have a different attitude to life than those in Hollywood - people stick together more.

It's better to be known by six people for something you're proud of than to be known by sixty million for something you're not.

Heaven must be populated with some rather strange creatures if all they lived for was to go to a place where they can strum harps for eternity.

Would you rather suffer 90 minutes or 90 years?

There's a simple, but oft-neglected lesson here: to sustain success, you have to be willing to abandon things that are no longer successful.

I think we Americans tend to put too high a price on unanimity, as if there were something dangerous and illegitimate about honest differences of opinion honestly expressed by honest men.

I never actually got around to taping conversations with my guests, but there are a lot of things you can learn from a man like Nixon.

The greatest act of courage is not falling in love But, despite everything, falling in love again.