Wilhelm Liebknecht
During the last decade of his life, Marx's health declined and he became incapable of the sustained effort that had characterised his previous work. He did manage to comment substantially on contemporary politics, particularly in Germany and Russia. His "Critique of the Gotha Programme" opposed the tendency of his followers Wilhelm Liebknecht and August Bebel to compromise with the state socialism of Ferdinand Lassalle in the interests of a united socialist party. This work is also notable for another famous Marx quote: "From each according to his ability, to each according to his need".