Actually, the problem for the world as a whole is not how to distribute such wealth that exists but how to increase production, without which economi… - George Orwell

To enforce the lies of the present, it is necessary to erase the truths of the past.

He realized how easy it was to present an appearance of orthodoxy while having no grasp whatever of what orthodoxy meant. In a way, the world-view of the Party imposed itself most successfully on people incapable of understanding it. They could be made to accept the most flagrant violations of reality, because they never fully grasped the enormity of what was demanded of them, and were not sufficiently interested in public events to notice what was happening. By lack of understanding, they remained sane. They simply swallowed everything, and what they swallowed did them no harm because it left no residue behind.

In general, the greater the understanding, the greater the delusion; the more intelligent, the less sane.