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Ever since we arrived on this planet as a species, we've cut them down, dug them up, burnt them and poisoned them. Today we're doing so on a greater scale than ever […] We destroy plants at our peril. Neither we nor any other animal can survive without them. The time has now come for us to cherish our green inheritance, not to pillage it – for without it, we will surely perish.
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David Attenborough

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Firstly what does conservation mean? It is not merely the saving from extinction of such species as the Notornis, the Leadbetters Possum or the Leathery Turtle; this is important work but it is only part of the problem. You cannot begin to preserve any species of animal unless you preserve the habitat in which it dwells. Disturb or destroy that habitat and you will exterminate the species as surely as if you had shot it. So conservation means that you have to preserve forest and grassland, river and lake, even the sea itself. This is not only vital for the preservation of animal life generally, but for the future existence of man himself — a point that seems to escape many people.

 

Gerald Durrell

 

The supporters of the Development Hypothesis... can show that any existing species—animal or vegetable—when placed under conditions different from its previous ones, immediately begins to undergo certain changes fitting it for the new conditions. They can show that in successive generations these changes continue; until, ultimately, the new conditions become the natural ones. They can show that in cultivated plants, in domesticated animals, and in the several races of men, such alterations have taken place. They can show that the degrees of difference so produced are often, as in dogs, greater than those on which distinctions of species are in other cases founded.

 

Herbert Spencer

 

Our planet, the Earth, is, as far as we know, unique in the universe. It contains life. Even in its most barren stretches, there are animals. Around the equator, where those two essentials for life, sunshine and moisture, are most abundant, great forests grow. And here plants and animals proliferate in such numbers that we still have not even named all the different species. Here, animals and plants, insects and birds, mammals and man live together in intimate and complex communities, each dependent on one another. Two thirds of the surface of this unique planet are covered by water, and it was here indeed that life began. From the oceans, it has spread even to the summits of the highest mountains as animals and plants have responded to the changing face of the Earth.

 

David Attenborough

 

I have a sense that something amazing is at work ... I think our planet is actually moving into a time of profound harmony and fecundity and peace but whether that's going to take 600 years or 6 days I don't know. I mean, I think that as humans begin to take seriously... the planetary dimension of conscious self-awareness, then we will become homonized versions of natural selection — so that we will begin to make decision with the large scale dynamic of the planet in mind. So I see that we're actually entering into a transformation of the human species out of the modern period into this new era... It may take centuries... but like the past and it's catastrophes I think that's... what's taking place in the midst of so many hardships.

 

Brian Swimme

 

The earth is not a mechanism but an organism, a being with its own life and its own reasons, where the support and sustenance of the human animal is incidental. If man in his newfound power and vanity persists in the attempt to remake the planet in his own image, he will succeed only in destroying himself — not the planet. The earth will survive our most ingenious folly.

 

Edward Abbey