'What are the stars?' said O'Brien indifferently. 'They are bits of fire
a few kilometres away. We could reach them if we wanted to. Or we could
blot them out. The earth is the centre of the universe. The sun and the
stars go round it.'
Winston made another convulsive movement. This time he did not say
anything. O'Brien continued as though answering a spoken objection:
'For certain purposes, of course, that is not true. When we navigate the
ocean, or when we predict an eclipse, we often find it convenient to
assume that the earth goes round the sun and that the stars are millions
upon millions of kilometres away. But what of it? Do you suppose it is
beyond us to produce a dual system of astronomy? The stars can be near
or distant, according as we need them. Do you suppose our mathematicians
are unequal to that? Have you forgotten doublethink?'