In the 1830s, as the capitalist system had established and consolidated in Europe, the drawbacks of the capitalist society appeared, and the class contradictions also sharpened day by day. The capitalist mode of production "has left no other nexus between man and man than naked self-interest, than calloused `cash payment'. It has drowned out the most heavenly ecstasies of religious fervor, of chivalrous enthusiasm, of philistine sentimentalism, in the icy water of egotistical calculation. It has resolved personal worth into exchange value, and in place of the numberless indefeasible chartered freedoms, has set up that single, unconscionable freedom --- Free Trade. In one word, for exploitation, veiled by religious and political illusions, it has substituted naked, shameless, direct, brutal exploitation."(Marx, Engels 1972: 253). Additionally, the development of natural science and the victory in objecting to the religion and idealism struggle of materialism impelled the writers to...