Liebe, Luxus und Kapitalismus, c1992 t.p. (Werner Sombart) p. 205 (b. 1863; 1906-1941, Professor in Berlin; d. 1941)
Wikipedia, viewed 13 May 2013 Werner Sombart (19 January 1863 – 18 May 1941) was a German economist and sociologist, the head of the “Youngest Historical School” and one of the leading Continental European social scientists during the first quarter of the 20th century.