Marx worked in the British Museum library from ten to seven each day. He pored over books and manuscripts on economics, gathering and cataloging enormous amounts of data which formed the basis of his Das Kapital. This meticulous book required eighteen years of preparation, with the main part — Volume I — published in 1867, after two years of editing.
Marx endured not only poverty but also disappointment. His later years were filled with bickering over the validity of his interpretations among a motley assortment of dissidents. At one point near the end of his life, disgusted with feuding, Marx declared, "I am not a Marxist." At his death, only Volume I of his masterpiece had been published. Engels published Volume II in 1885 and Volume III in 1894; the final volume appeared in 1910, making a total of 2500 pages filled with minute, tedious points of economic theory.
As Marx did not make a systematic presentation of his philosophy, it is necessary to discover his basic concepts from a study of The Communist Manifesto and Das Kapital, each of which was written for a different purpose. Marx developed the principle of dialectical materialism from the dialectical method of Hegel, a German philosopher who believed that change occurs as the result of a blend of opposing forces. The given idea, or thesis, when challenged by an opposing idea, or antithesis, results in a new concept, or synthesis, which is somewhat closer to the truth than the initial two ideas. Accepting this fundamental premise, Marx went further. He substituted realism for Hegel's idealism and used it to explain world history. By stressing the reality of materialism, Marx evolved his economic interpretation of history. Marx's writings interpret history in terms of a class struggle for survival, which determines everything else in human affairs. The history of humanity, according to Marx, is primarily the story of one class' exploitation of another. Applying the theory of dialectical materialism, Marx determined that the inevitable next step was a revolt of the overwhelming majority of workers, who would overthrow the ruling capitalists and establish a dictatorship of the proletariat, or workers. This economic cataclysm would lead to communal ownership and a return to a classless society.
