This is a quote from the book "Animal Farm" by George Orwell
...s, which no animal could use, because no animal could stand on his hind legs. Only after weeks of vain effort did the right idea occur to somebody-namely, to utilise the force of gravity. Huge boulder s, far too big to be used as they were, were lying all over the bed of the quarry. The animals lashed ropes round these, and then all together, cows, horses, sheep, any animal that could lay hold of t he rope — even the pigs sometimes joined in at critical moments — they dragged them with desperate slowness up the slope to the top of the quarry, where they were toppled over the edge, to shatter to ...
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