'wether ritualized or not, art contains the rationality of negation. in its advanced positions, it is the great refusal- the protest against that which is. the modes in which man and things are made to appear, to sing and sound and speak, are modes of refuting, breaking and recreating their factual existence. but these modes of negation pay tribute to the antagonistic society to which they are linked. separated from the sphere of labor where society reproduces itself and its misery, the world of art which they create remains, with all its truth, a privilege and an illusion.'
herbert marcuse

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