“This is one of the mutterings which they are muttering today: "The social well-being of the people, the upward movement of the non-propertied or labour classes to material welfare, is continually being obstructed by conceptions of political subserviency and passive obedience to despotic authority, which is directly traceable to Christian doctrine."”

Source: Public Finance - International Edition - Sixth Edition, Chapter 3, Tools of Normative Analysis, p. 42

Autobiography (1873)

Napoleon the Little (1852), Conclusion, Part First, III
Napoleon the Little (1852)

Source: Anti-Intellectualism in American Life (1974), p. 29

Source: 1900s, Up From Slavery (1901), Chapter XVI: Europe

Preface to ' (1859).
Source: A Contribution to the Critique of Political Economy
Context: In the social production of their life, men enter into definite relations that are indispensable and independent of their will; these relations of production correspond to a definite stage of development of their material forces of production. The sum total of these relations of production constitutes the economic structure of society — the real foundation, on which rises a legal and political superstructure and to which correspond definite forms of social consciousness. The mode of production of material life determines the social, political and intellectual life process in general. It is not the consciousness of men that determines their being, but, on the contrary, their social being that determines their consciousness. [Es ist nicht das Bewußtsein der Menschen, das ihr Sein, sondern umgekehrt ihr gesellschaftliches Sein, das ihr Bewusstsein bestimmt. ] At a certain stage of their development, the material productive forces in society come in conflict with the existing relations of production, or — what is but a legal expression for the same thing — with the property relations within which they have been at work before. From forms of development of the productive forces these relations turn into fetters. Then begins an epoch of social revolution. With the change of the economic foundation the entire immense superstructure is more or less rapidly transformed. In considering such transformations a distinction should always be made between the material transformation of the economic conditions of production, which can be determined with the precision of natural science, and the legal, political, religious, aesthetic or philosophic — in short, ideological forms in which men become conscious of this conflict and fight it out. Just as our opinion of an individual is not based on what he thinks of himself, so we can not judge of such a period of transformation by its own consciousness; on the contrary, this consciousness must be explained rather from the contradictions of material life, from the existing conflict between the social productive forces and the relations of production. No social order ever disappears before all the productive forces for which there is room in it have been developed; and new, higher relations of production never appear before the material conditions of their existence have matured in the womb of the old society itself. Therefore, mankind always sets itself only such tasks as it can solve; since, looking at the matter more closely, we will always find that the task itself arises only when the material conditions necessary for its solution already exist or are at least in the process of formation. In broad outlines we can designate the Asiatic, the ancient, the feudal, and the modern bourgeois modes of production as so many progressive epochs in the economic formation of society. The bourgeois relations of production are the last antagonistic form of the social process of production — antagonistic not in the sense of individual antagonism, but of one arising from the social conditions of life of the individuals; at the same time the productive forces developing in the womb of bourgeois society create the material conditions for the solution of that antagonism. This social formation constitutes, therefore, the closing chapter of the prehistoric stage of human society.

Outlook for Socialism in the United States (1900)
Context: Of course, Socialism is violently denounced by the capitalist press and by all the brood of subsidized contributors to magazine literature, but this only confirms the view that the advance of Socialism is very properly recognized by the capitalist class as the one cloud upon the horizon which portends an end to the system in which they have waxed fat, insolent and despotic through the exploitation of their countless.

My Disillusionment in Russia (1923)

No Compromise – No Political Trading (1899)
Context: This foundation of the class struggle, which Marx – and this is his immortal service – has given to the modern labor movement, is the main point of attack in the battle which the bourgeois political economy is waging with socialism. The political economists deny the class struggle and would make of the labor movement only a part of the bourgeois party movements, and the Social Democracy only a division of the bourgeois democracy. The bourgeois political economy and politics direct all their exertions against the class character of the modern labor movement. If it were possible to create a breach in this bulwark, in this citadel of the Social Democracy, then the Social Democracy is conquered, and the proletariat thrown back under the dominion of capitalistic society. However small such a breach may be in the beginning, the enemy has the power to widen it and the certainty of final victory. And the enemy is most dangerous when he comes as a friend to the fortress, when he slinks in under the cover of friendship, and is recognized as a friend and comrade. The enemy who comes to us with open visor we face with a smile; to set our foot upon his neck is mere play for us. The stupidly brutal acts of violence of police politicians, the outrages of anti-socialist laws, the anti-revolution laws, penitentiary bills – these only arouse feelings of pitying contempt; the enemy, however, that reaches out the hand to us for a political alliance; and intrudes himself upon us as a friend and brother, – him and him alone have we to fear. Our fortress can withstand every assault – it can not be stormed nor taken from us by siege – it can only fall when we ourselves open the doors to the enemy and take him into our ranks as a fellow comrade. Growing out of the class struggle, our party rests upon the class struggle as a condition of its existence. Through and with that struggle the party is unconquerable; without it the party is lost, for it will have lost the source of its strength. Whoever fails to understand this or thinks that the class struggle is a dead issue, or that class antagonisms are gradually being effaced, stands upon the basis of bourgeois philosophy.