"The entire history of the Soviet Union can be comprehended as homologous with Freud's famous image of Rome, a city whose history is deposited in its present in the guise of the different layers of the archaeological remainders, each new level covering up the preceding one, like (another model) the seven layers of Troy, so that history, in its regression towards ever older epochs, proceeds like the archaeologist, discovering new layers by probing deeper and deeper into the ground."