“We have proceeded from the premises of political economy. We have accepted its language and its laws. We presupposed private property, the separation of labor, capital and land, and of wages, profit of capital and rent of land – likewise division of labor, competition, the concept of exchange value, etc. On the basis of political economy itself, in its own words, we have shown that the worker sinks to the level of a commodity and becomes indeed the most wretched of commodities; that the wretchedness of the worker is in inverse proportion to the power and magnitude of his production; that the necessary result of competition is the accumulation of capital in a few hands, and thus the restoration of monopoly in a more terrible form; and that finally the distinction between capitalist and land rentier, like that between the tiller of the soil and the factory worker, disappears and that the whole of society must fall apart into the two classes – property owners and propertyless workers.”

“All these consequences are implied in the statement that the worker is related to the product of labor as to an alien object. For on this premise it is clear that the more the worker spends himself, the more powerful becomes the alien world of objects which he creates over and against himself, the poorer he himself – his inner world – becomes, the less belongs to him as his own. It is the same in religion. The more man puts into God, the less he retains in himself. The worker puts his life into the object; but now his life no longer belongs to him but to the object. Hence, the greater this activity, the more the worker lacks objects. Whatever the product of his labor is, he is not. Therefore, the greater this product, the less is he himself. The alienation of the worker in his product means not only that his labor becomes an object, an external existence, but that it exists outside him, independently, as something alien to him, and that it becomes a power on its own confronting him. It means that the life which he has conferred on the object confronts him as something hostile and alien.”

–Marx, Estranged Labour