"For each new class which puts itself in the place of one ruling before it, is compelled, merely in order to carry through its aim, to represent its interests the common interest of all the members of society, that is, sality, and represent them as the only rational, universally valid ones. The class making a revolution appears from the very start, if only because it is opposed to a class, not as a class but as the representative of the whole of society; it appears as the whole mass of society confronting the one ruling class."