Note 80 — XIV.
Robert Rives La Monte translation
It is seen what our judgment must be regarding the thesis maintained by Ziegler, in his book: La question sociale est une question morale (The social question is a moral question). French trans., Paris, 1894. Just as psychology is an effect of physiology, so the moral phenomena are effects of the economic facts. Such books are only intended, more or less consciously, to divert attention from the vital point of the question, which is that formulated by Karl Marx.
See on our side, De Greef, l'Empirieme, l'utopié et le socialisme scientifique, Revue Socialiste, Aug., 1886, p. 688.