[2] To Plenge, as for many other German nationalists and socialists, organization meant socialism and a planned economy (central direction).
He was also influenced by Johann Karl Rodbertus, Lorenz von Stein and Houston Stewart Chamberlain.
[5] Philosopher Josef Pieper became his student and then his assistant, although he was threatened with dismissal when he did not show the required degree of hero worship for Plenge.
D. advisor of Kurt Schumacher and an ancestor of today's right-wing tendency in SPD, the Seeheimer Kreis.
Plenge had a strong influence; the Marxist theorist and SPD politician Paul Lensch, along nationalistic lines.