Poetry is the plough that turns up time in such a way that the abyssal strata of time, its black earth, appear on the surface. There are epochs, however, when mankind, not satisfied with the present, yearning like the ploughman for the abyssal strata of time, thirsts for the virgin soil of time. Revolution in art inevitably leads to Classicism, not because David reaped the harvest of Robespierre, but because that is what the earth desires.

from Mandelstam's 'Word and Culture'