In 1956, Jung wrote the essay entitled, "Past and Future" in German, but we know it in English as "The Undiscovered Self". Having witnessed the horror of the world wars, and the ongoing apocalyptic danger of the Cold War, Jung attempted to explain why it was that societies sometimes went mad. This is how Europe experienced the outbreak of The Great War: as mass insanity. Why would free people gravitate towards cult-like tyrannies? How could ordinarily moral and reasonable people perpetrate acts of unthinkable violence? And how could our constitutional democracies remain susceptible to these outbursts, if we are so committed to principles such as freedom and human dignity? For Jung, the only answer is self-knowledge, but that is the one thing that modern society is making impossible