[14] Lippert, Kulturgeschichte der Menschheit. Stuttgart, 1886, II, p. 302.
[15] Lippert, l. c. II, p. 522.
[16] Römische Geschichte. Sixth Edition. Berlin, 1874, I, p. 17.
[17] Ratzel, l. c. II, p. 518.
[18] Ratzel, l. c. I, p. 425.
[19] Ratzel, l. c. II, p. 545.
[20] Ratzel, l. c. II, pp. 390–1.
[21] Ratzel, l. c. II, pp. 390–1.
[22] Lippert, l. c. I, p. 471.
[23] Kulischer, “The history of the development of interest from capital.” Jahrbücher für National Œkonomie. III series, vol. 18, p. 318, Jena, 1899: (Says Strabo: “Plunderers and from the scant supplies of their native land covetous of the lands of others.”)