1900-1980 1958- 20thcentury american authors autobiography bible bio026000nat045040 biography civilization communism currentevents ecosystems englishlanguage erich general habitats history homes homesandhauntsfromm humanism humanisticethics intellectuallife jewishpsychotherapists judaism knowledge marxism modern nature outdoorlife personality personalmemoirs pete politicalphilosophy politicalscience politics politics/internationalrelations psychoanalysis psychologists psychology religionfromm social solidarity style theory translationsintogerman unitedstates wilderness