Socialism: A Summary and Interpretation of Socialist Principles

by John Spargo

[62] Studies in the Evolution of Industrial Society, by R. T. Ely, page 3.

[63] Cf. Seligman, The Economic Interpretation of History.

[64] Clodd, Pioneers of Evolution from Thales to Huxley, page 8.

[65] Seligman, The Economic Interpretation of History, page 50.

[66] Mass and Class, by W. J. Ghent, page 9.

[67] Seligman, The Economic Interpretation of History, page 4.

[68] Schiller, Philosophical Letters, Preamble.

[69] Seligman, The Economic Interpretation of History, page 86.

[70] Karl Marx, Notes on Feuerbach (written in 1845), published as an Appendix to Feuerbach, The Roots the Socialist Philosophy, by Friederich Engels. English translation by Austin Lewis (1903).

[71] Christianity and the Social Crisis, by Walter Rauschenbusch (1907), page 4.