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Animal Farm written by George Orwell is an animal fable happens in a farm where animals start building a communism society, but end up being totalitarianism, hinting obliquely at the communists in the real world. The gaps between pigs and other common animals, demonstrate the theme that the corruption of power appears when majority is ruled. The intelligence superior allows the pigs placing themselves at a position which is closer to the power and which is more easily to corrupt. The inability to question the authorization makes the other common animals becoming the naïve working class who suffers the corrupting influence of power. The nature of pigs, greed, is the source of their undying lust for ultimate power.