“The need of a constantly expanding market for its products chases the bourgeoisie over the entire surface of the globe.”

“The human being is in the most literal sense a political animal, not merely a gregarious animal, but an animal which can individuate itself only in the midst of society.”

“The most interesting acquaintanceship I have struck up here is that of Colonel Lapinski. He is without doubt the cleverest Pole - besides being an homme d'action [man of action] - that I have ever met. His sympathies are all on the German side, though in manners and speech he is also a Frenchman. He cares nothing for the struggle of nationalities and only knows the racial struggle. He hates all Orientals, among whom he numbers Russians Turks, Greeks, Armenians, etc., with equal impartiality.... His aim now is to raise a German legion in London.”

“He who before was the money owner, now strides in front as capitalist; the possessor of labor-power follows as his laborer. The one with an air of importance, smirking, intent on business; the other hesitant, like one who is bringing his own hide to market and has nothing to expect but a hiding.”

“Philosophy is to science as masturbation is to sex.”

“The last resort of kings, the cannonball. The last resort of the people, the paving stone.”

“I believe that there will be ultimately be a clash between the oppressed and those who do the oppressing. I believe that there will be a clash between those who want freedom, justice and equality for everyone and those who want to continue the system of exploitation. I believe that there will be that kind of clash, but I don't think it will be based on the color of the skin.”

“War is the highest form of struggle for resolving contradictions, when they have developed to a certain stage, between classes, nations, states, or political groups, and it has existed ever since the emergence of private property and of classes.”