Ludwig Edler von Mises, Nation, State and Economy (1919; 1983, Leland B. Yeager, trans.), p. 252.
Bourgeois civilization has built railroads and electric power plants, has invented explosives and airplanes, in order to create wealth. Imperialism has placed the tools of peace in the service of destruction. With modern means it would be easy to wipe out humanity at one blow.
Ludwig von Mises