[11] Third Essay on a New View of Society, pp. 65, 82.
[12] See Émile Thomas, History of the National Workshops.
[13] What Is Property? Collected Works, Vol. I, p. 286.
[14] In 1845 Marx made this note on the work of Feuerbach: "The point of view of the old materialism is bourgeois society; the point of view of the new materialism is human society or the unclassed humanity (vergesellschaftete Menschheit).
"Philosophers have only differently interpreted the world, but the point is to alter the world." See Frederick Engels, Ludwig Feuerbach und der Ausgang der Klassischen Deutschen Philosophie, Stuttgart, 1903.
[15] Essence of Christianity, Preface, p. xiii.
[16] For a concise statement of the development of Marxian Socialism out of the German philosophy of that period, see Frederick Engels, Die Entwickelung des Sozialismus von der Utopie zur Wissenschaft, Berlin, 1891. It is the third chapter out of his Dühring, Umwälzung.
[17] For a criticism of the teachings of Marx, see Sombart, Socialism and the Social Movement, Chap. IV.