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Twelve voices were shouting in anger, and they were all alike. No question, now, what had happened to the faces of the pigs. The creatures outside looked from pig to man, and from man to pig, and from pig to man again; but already it was impossible to say which was which. (10.35)
While the pigs change in many ways, it is not moving into the house, or wearing clothes, or walking on two legs that makes them like the humans – it is the abuse of their power.