The modern bourgeois society that has sprouted from the ruins
of feudal society has not done away with class antagonisms.  It
has but established new classes, new conditions of oppression,
new forms of struggle in place of the old ones.  Our epoch, the
epoch of the bourgeoisie, possesses, however, this distinctive
feature: it has simplified the class antagonisms.  Society as a
whole is more and more splitting up into two great hostile camps,
into two great classes, directly facing each other: Bourgeoisie
and Proletariat.