The Revolutionary's Utopia, which in appearance represents a complete break with the past, is always modeled on some image of the Lost Paradise, of a legendary Golden Age... All utopias are fed from the source of mythology; the social engineers' blueprints are merely revised editions of the ancient text.
...the cosmology of a given age is not the result of unilinear, "scientific" development, but rather the most striking, imaginative symbol of its mentality- the projection of its conflicts, prejudice and specific ways of double-think onto the graceful sky.