The fate of nations is intimately bound up with their powers of reproduction. All nations and all empires first felt decadence gnawing at them when their birth rate fell off.
Source:
-- Benito Mussolini, (Jul 29 1883-1945), Italian political leader; Il Duce was prime minister (1922-43) and the first of 20th-century Europe's fascist dictators; allied with Adolf Hitler, 1939.