I fear that we live in an ahistorical age in which we believe that we are so wise that we no longer need the lessons of the past, perhaps most disturbingly of all that technology has put us beyond the lessons of the past.
Another factor that seems to me to be equally important is the great myth and rationale of 'the modern,' that it places dynamite at the foot of old error and levels its shrines and monuments. Contempt for the past surely accounts for a consistent failure to consult it.