"But simultaneously with the development of capitalist production the credit system also develops. The money-capital which the capitalist cannot as yet employ in his own business is employed by others, who pay him interest for its use."
Karl Marx was a German philosopher, political theorist, sociologist, economist, journalist, and revolutionary socialist. He developed the theory of historical materialism, analyzing class struggle under capitalism and predicting the system's overthrow by the proletariat in favour of communism. Marx co-authored The Communist Manifesto (1848) with his lifelong friend Friedrich Engels, and undertook
"It goes without saying that the normal durability of fixed capital is calculated on the supposition that all the conditions under which it can perform its functions normally during that time are fulfilled, just as we assume, in placing a mans life at 30 years on the average,that he will wash himself."
Karl Marx"Surplus value is exactly equal to surplus labour; the increase of the one [is] exactly measured by the diminution of necessary labour."
Karl Marx"“And your education! Is not that also social, and determined by the social conditions under which you educate, by the intervention, direct or indirect, of society, by means of schools, etc.? The Communists have not invented the intervention of society in education; they do but seek to alter the character of that intervention, and to rescue education from the influence of the ruling class.”"
Karl Marx"History is not like some individual person, which uses men to achieve its ends. History is nothing but the actions of men in pursuit of their ends."
Karl Marx"Die Philosophen haben die Welt nur verschieden interpretirt; es kommt aber darauf an, sie zu verändern."
Karl Marx"Reason has always existed, but not always in a rational form."
Karl Marx