Successful movements also need an organisational model that allows them to keep growing.

I might find myself standing, transfixed, by the roadside, watching a sparrowhawk hunting among the bushes, astonished that other people could ignore it. But they might just as well be wondering how I could have failed to notice the new V6 Pentastar Sahara that just drove past.

Immense wealth translates automatically into immense environmental impacts, regardless of the intentions of those who possess it.

Places that have become agricultural deserts, trashed by giant corporations, could be reforested, drawing carbon dioxide from the air on a vast scale. The ecosystems of land and sea could recover, not just in pockets but across great tracts of the planet.

We must join with the tens of millions all over the world who see in peace our most sacred responsibility.

Misery, mutilation, destruction, terror, starvation and death characterize the process of war and form a principal part of the product.

You see, O Greeks! The enemy already acknowledge the country to be ours; for when they made peace with us, they stipulated that we should not burn the country belonging to the king, and now they set fire to it themselves, as if they looked upon it no longer as their own.

Barbecue may not be the road to world peace, but it's a start.