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 animal must ever kill any other animal. All animals are equal."
Animal Farm, from Old Major's speech
Of all the books I read in my teen years, Animal Farm was the most influential…