Friedrich Engels

"The working class must be the driving force of the revolution."

"The power of history lies in class struggle."

"Socialism is not a utopia but the logical conclusion of history."

"The historical development of humanity leads to an inevitable social upheaval."

"Labor is the foundation of value creation."

"Ownership of the means of production should belong to the people."

"Revolution is not just an upheaval; it is the transformation of society itself."

"Capitalism cannot be reformed; it must be abolished."

"Nothing is more stable in the world than social relations in a class-based society."

"Humanity must strive for the liberation of all people, not just a select few."