On coins, on stamps, on the covers of books, on banners, on posters, and on the wrappings of a cigarette Packet -- [Big Brother was] everywhere. Always the eyes watching you and the voice enveloping you. Asleep or awake, working or eating, indoors or out of doors, in the bath or in bed -- no escape. Nothing was your own except the few cubic centimetres inside your skull.
-- George Orwell, Nineteen-Eighty-Four