When some remote ancestor of ours invented the shovel, he became a giver: He could plant a tree. And when the axe was invented, he became a taker: He could chop it down. Whoever owns land has thus assumed, whether he knows it or not, the divine functions of creating and destroying plants.
Aldo LeopoldAgricultural science is largely a race between the emergence of new pests and the emergence of new techniques for their control.
Aldo LeopoldOn motionless wing they emerge from the lifting mists, sweep a final arc of sky, and settle in clangorous descending spirals to their feeding grounds. A new day has begun on the crane marsh.
Aldo Leopold