"You who have not experienced their anguish, who do not speak their language and do not mourn their dead, think before you offend them, before you betray them.… Wait until the last survivor, the last witness, has joined the long procession of silent shadows whose judgment one day will resound and shake the earth and its Creator."
I remember when the Holocaust was being discussed in school and having to read books like Night in school and I was actually fascinated by this; the depths of good and evil that people can do are simply unfathomable. A British journalist wrote about the aftermath of the Battle of Shanghai when he visited what was once a densely packed suburb, "I saw only 5 Chinese, who were old men, hiding in a French mission compound in tears."[1]
[1]https://books.google.com/books?id=zNN6M97vYMEC&pg=PA70&lpg=P...