This is a green world, with animals comparatively few and small, and all dependent on the leaves. By leaves we live. Some people have strange ideas that we live by money. They think energy is generated by the circulation of coins. Whereas the world is mainly a vast leaf colony; growing on and forming a leafy soil, not a mere mineral mass; and we live not by the jingling of our coins, but by the fullness of our harvests.
Patrick Geddes, 1854-1932
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Our species could not have evolved until plants had created the air we breathe. They feed, shelter, fuel and cure us and if we want to secure our future we must tend to the leaves. If we become global gardeners, plants will provide for our future.
Stephen Blackmore, 2009
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