Dietzgen, Peter Joseph (09 December 1828–15 April 1888), writer and socialist philosopher, was born in Blankenberg near Cologne, now part of Germany, the son of Gottfried Dietzgen, a master tanner, and Margaret Lückeroth. He had an elementary education and some high school in Cologne prior to learning his father’s trade. In hours of recreation from the tannery he studied literature, economics, and philosophy and became fluent in French. His studies of French economists, the ...