This is a quote from the book "Animal Farm" by George Orwell
... to break. Nothing could have been achieved without Boxer, whose strength seemed equal to that of all the rest of the animals put together. When the boulder began to slip and the animals cried out in
despair at finding themselves dragged down the hill, it was always Boxer who strained himself against the rope and brought the boulder to a stop. To see him toiling up the slope inch by inch, his brea
th coming fast, the tips of his hoofs clawing at the ground, and his great sides matted with sweat, filled everyone with admiration. Clover warned him sometimes to be careful not to overstrain himself...
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