For, after all, how do we know that two and two make four? Or that the force of gravity works? Or that the past is unchangeable? If both the past and… - George Orwell

If both the past and the external world exist only in the mind, and if the mind itself is controllable - what then?

In past ages, a war, almost by definition, was something that sooner or later came to an end, usually in unmistakable victory or defeat. In the past, also, war was one of the main instruments by which human societies were kept in touch with physical reality. All rulers in all ages have tried to impose a false view of the world upon their followers, but they could not afford to encourage any illusion that tended to impair military efficiency. So long as defeat meant the loss of independence, or some other result generally held to be undesirable, the precautions against defeat had to be serious. Physical facts could not be ignored. In philosophy, or religion, or ethics, or politics, two and two might make five, but when one was designing a gun or an aeroplane 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 coloured and biased, but falsification of the kind that is practiced today would have been impossible. War was a sure safeguard of sanity, and so far as the ruling classes were concerned it was probably the most important of all safeguards. While wars could be won or lost, no ruling class could be completely irresponsible.

There are occasions when it pays better to fight and be beaten than not to fight at all.

I am a degenerate modern semi-intellectual who would die if I did not get my early morning cup of tea and my New Statesman every Friday. Clearly I do not, in a sense, 'want' to return to a simpler, harder, probably agricultural way of life. In the same sense I don't 'want' to cut down on my drinking, to pay my debts, to take enough exercise, to be faithful to my wife, etc. etc. But in another and more permanent sense I do want these things, and perhaps in the same sense I want a civilization in which 'progress' is not definable as making the world safe for little fat men.