"In philosophy, or religion, or ethics, or politics, two and two might make five, but when one was designing a gun or airplane they had to make four. Inefficient nations were always conquered sooner or later, and the struggle for efficiency was inimical to illusions. Moreover, to be efficient it was necessary to be able to learn from the past, which meant having a fairly accurate idea of what had happened in the past. Newspapers and history books were, of course, always colored and biased, but falsification of the kind that is practiced today would have been impossible.". --George Orwell 1984