Between these two classes, says Marx, there are deep-seated, unbridgeable antagonisms, which lead to a class struggle. The antagonisms are primarily of an economic nature. The wage-earners, as the owners of labour power, are constrained to sell this as dear as possible, i.e., to obtain the highest possible wages, whereas the owners of capital endeavour to buy such labour-power as cheap as possible, i.e., to pay the least possible wages. This antagonism is indeed fundamental, but, at first sight, does not touch the intellectual sphere very deeply. On the surface, this antagonism is only one as between buyer and seller, but in reality the distinction is very great, as the seller of labour-power will quickly starve if he does not market his commodity. The owner of the means of production is therefore in a position to cause the seller of labour-power to starve, if the latter does not accept the conditions which the capitalist imposes. Ownership of capital reveals itself as a power that can oppress the owner of labour-power. This antagonism leads to the formation of Trade Unions. It is also the prime cause of the class struggle, but mere trade unionism is but its incipient stage. It develops into a class struggle when the workers recognise that their condition of subjection is not a temporary state, but the result of the economic system of private capitalism, that the subjection will last so long as this economic system exists, and that the latter could be replaced by an economic order in which the means of production belong to all the members of society. The wage-workers only participate in the class struggle when they learn to think in a Socialist sense, when hostility to the existing social order develops out of the sporadic and unrelated wage struggle and actions of Trade Unions, and when the proletariat, as an organised class, turns from the preoccupations of the present to the tasks of the future, and strives to change the basis of society from private property to common property. The workers then become aware that there can be neither freedom nor equality for them in the existing society, and that their emancipation can only be attained through Socialism. The class struggle may, however, stop short at the recognition of these facts. The dialectical movement will be incomplete if the working class does not take its fate into its own hands, and is not convinced that it has the power to achieve its own emancipation, and therefore contents itself with small social reforms, or relies on noble-minded and benevolent men and heroic redeemers. This was actually the case in the beginnings of the Socialist movement, when the workers saw in Socialism the only way out, but were still too weak to take their fate into their own hands. This was the period which Marx called Utopian, when outstanding personalities spread Socialist ideas, and made Socialist plans and experiments to free the labouring masses. As these