“Western civilization presents one of the most difficult tasks for historical analysis, because it is not yet finished, because we are a part of it and lack perspective, and because it presents considerable variation from our pattern of historical change.” DifficultPerspectiveCivilizationTasksHistoricalWesternPatternsFinishedAnalysisVariationWestern CivilizationDifficult TasksHistorical Change Book:The evolution of civilizations: an introduction to historical analysis Source: The evolution of civilizations: an introduction to historical analysis