People sometimes try to forget painful memory to be released from agony, but such memory is essential to have hope for future. We can learn a lesson from our memory about what to do in order not to repeat sad history. Wiesel rightly and impressively said, “The memory of evil will serve as a shield against evil.” Nowadays, more than seventy years after World War II, the majority of people in developed countries have not experienced the war. Therefore, not only keeping our own memory but also taking over others’ memory is important. Some people who survived World War II tell the younger how the war was tragic and build their anti-war mindset, but such opportunities are decreasing as they get old. Wiesel’s argument made me realize that I