Radio, which formerly had been the main force making for cosmopolitanism, became suddenly in each country the main stimulus to nationalism. Morning, noon and night, every civilized people was assured that enemies, whose flavor was of course subhuman and foul, were plotting its destruction. Armament scares, spy stories, accounts of the barbarous and sadistic behavior of neighboring peoples, created in every country such uncritical suspicion and hate that war became inevitable... All thought of human brotherhood, and even of personal safety, was swept away by a savage blood-lust.

Chapter III: The Other Earth; 2. A Busy World (p. 36) - Star Maker (1937)