<P> At a certain stage of development, the material productive forces of society come into conflict with the existing relations of production or--this merely expresses the same thing in legal terms--with the property relations within the framework of which they have operated hitherto . Then begins an era of social revolution . The changes in the economic foundation lead sooner or later to the transformation of the whole immense superstructure . </P> <P> Karl Marx and Friedrich Engels argued that socialism would emerge from historical necessity as capitalism rendered itself obsolete and unsustainable from increasing internal contradictions emerging from the development of the productive forces and technology . It was these advances in the productive forces combined with the old social relations of production of capitalism that would generate contradictions, leading to working - class consciousness . </P> <P> Marx and Engels held the view that the consciousness of those who earn a wage or salary (the working class in the broadest Marxist sense) would be moulded by their conditions of wage slavery, leading to a tendency to seek their freedom or emancipation by overthrowing ownership of the means of production by capitalists and consequently, overthrowing the state that upheld this economic order . For Marx and Engels, conditions determine consciousness and ending the role of the capitalist class leads eventually to a classless society in which the state would wither away . The Marxist conception of socialism is that of a specific historical phase that would displace capitalism and precede communism . The major characteristics of socialism (particularly as conceived by Marx and Engels after the Paris Commune of 1871) are that the proletariat would control the means of production through a workers' state erected by the workers in their interests . Economic activity would still be organised through the use of incentive systems and social classes would still exist, but to a lesser and diminishing extent than under capitalism . </P> <P> For orthodox Marxists, socialism is the lower stage of communism based on the principle of "from each according to his ability, to each according to his contribution" while upper stage communism is based on the principle of "from each according to his ability, to each according to his need", the upper stage becoming possible only after the socialist stage further develops economic efficiency and the automation of production has led to a superabundance of goods and services . Marx argued that the material productive forces (in industry and commerce) brought into existence by capitalism predicated a cooperative society since production had become a mass social, collective activity of the working class to create commodities but with private ownership (the relations of production or property relations). This conflict between collective effort in large factories and private ownership would bring about a conscious desire in the working class to establish collective ownership commensurate with the collective efforts their daily experience . </P>

Two goals were inherent in the idea of socialism