Just as Darwin discovered the law of evolution in organic nature, so Marx discovered the law of evolution in human history; he discovered the simple fact, hitherto concealed by an overgrowth of idealogy [sic], that mankind must first of all eat and drink, have shelter and clothing, before it can pursue politics, science, religion, art etc.
Friedrich EngelsHow do you think the transition from the present situation to community of Property is to be effected? The first, fundamental condition for the introduction of community of property is the political liberation of the proletariat through a democratic constitution.
Friedrich EngelsDon't forget any affront done to you and to all our people, the time of revenge will come and must be put to good use.
Friedrich EngelsIn a political struggle of class against class, organization of trade unions is the most important weapon.
Friedrich EngelsWe discovered that in connection with these figures the German national simpletons and money-grubbers of the Frankfurt parliamentary swamp always counted as Germans the Polish Jews as well, although this dirtiest of all races, neither by its jargon nor by its descent, but at most only through its lust for profit, could have any relation of kinship with Frankfurt.
Friedrich Engels