Billias argues Bancroft played on four recurring themes to explain how America developed its values: providence, progress, patria, and pan-democracy. "Providence" meant that destiny depended more on God than on human will. The idea of "progress" indicated that through continuous reform a better society was possible. "Patria" (love of country) was deserved because America's spreading influence would bring liberty and freedom to more and more of the world. "Pan-democracy" meant the nation-state was central to the drama, not specific heroes or villains.