September 23

If, contrary to all the efforts of our enemies, the modern labor movement marches triumphantly forward, its head raised high, then it owes this first and foremost to its calm understanding of the lawfulness of objective historical development, its understanding that "capitalist society with the inevitability of a natural process creates its own negation, namely, the expropriation of the expropriators, the socialist overturn." In this, its understanding, the labor movement sees a reliable guarantee of its final victory. And from this same source it draws not only its ability to surge forward but also its patience ; not only strength for action, but also the courage to stand firm and to endure.

Rosa Luxemburg
from Marxist Theory and the Proletariat (1903)