Karlstein Heinrich Metz (May 5, 1818 – March 14, 1883) was a Dundorfian 19th-century philosopher, political economist, sociologist, humanist, political theorist and revolutionary. He founded the socialist thought known as Metzism. His socialism, known as scientific socialism, differented from the utopic socialism in following: The utopian socialists only wanted to make small places, if they wanted to make them, but scientific socialists wants to make the whole world socialistic, and they involve the history, the classes and other things in their ideology.