Well, there are several messages that Orwell tried to convey in one of his best novels, Animal Farm. It is known that he was completely against Russia and communism, and this satirical novel is about that - power can lead to corruption and oppression. Even the good people can fall if confronted with ambition, selfishness, hypocrisy. We should aim to create a good state, but not to give anybody too much power, regardless of what kind of person he/she is.