Anne Frank was a Jewish girl who lived through the Nazi invasion of the Netherlands. She left her diary behind as she was taken to a concentration camp, and this diary serves now as a memory of the war, as well as evidence of the strength of her spirit. A famous quote from her diary states:
"In spite of everything I still believe that people are really good at heart. I simply can’t build up my hopes on a foundation consisting of confusion, misery, and death."
It is likely that Anne clings to her ideals despite the horrific world around her because she is driven by the conviction that people are ultimately good at heart, and this belief helps her keep hope for a better world.