2. Because Nazi soldiers are human beings, they also have feelings and their own mothers. He was moved by the little girl's words, and his heart showed pity, admiration, fear and helplessness for the little girl. An immediate discovery of human nature
It is the people on the execution ground who cry for the little girl.
They shouted angrily, "Fight Nazism and liberate all mankind."
The last paragraph says that human nature will not be buried by violence, and love is the dominant factor in this society, not violence. The author praises the greatness of human nature.