While modern styles of art were not allowed , the Nazis liked paintings and sculptures that were very traditional and old fashioned . They thought art should glorify Nazi ideas of the `` blood and soil '' values of racial purity , militarism , and obedience . While modern styles of art were prohibited , the Nazis promoted paintings and sculptures that were narrowly traditional in manner and that exalted the `` blood and soil '' values of racial purity , militarism , and obedience .