George Orwell, Animal Farm

". . . remember always your duty of enmity towards Man and all his ways. Whatever goes upon two legs is an enemy. Whatever goes upon four legs, or has wings, is a friend. And remember also that in fighting against Man, we must not come to resemble him . . . All the habits of Man are evil. And, above all, no animal must ever tyrannize over his own kind. Weak or strong, clever or simple, we are all brothers. …

…no way means that capitalism is better than socialism. But truth is that for this imperfect world doctrine as perfect as socialism will never work, what will work is capitalism based on simple principal of greed. Greed which is an undeniable part of human nature and that's why socialism implemented by humans will meet the same fate as communism in Russia and animalism on Manor Farm. This I believe is the essence of Animal Farm.