Derrida & hauntology

‘To haunt does not mean to be present, and it is necessary to introduce
haunting into the very construction of a concept,’ he wrote. (Jacques Derrida, Specters of Marx: The State
of the Debt, the Work of Mourning and the New International, Routledge, 1994, p202)

‘Capitalist societies,’ Derrida writes, ‘can always heave a sigh of
relief and say to themselves: communism is finished, but it did not take place, it was only a ghost. They
do no more than disavow the undeniable itself: a ghost never dies, it remains always to come and to
come-back.’ (Specters of Marx, p123)