"Ghosts are evil and hostile. There are no ghosts that are friendly to humans. Even if there are, they are hypocritical."
"Ghosts are a newly recognized species. Different from those in the novel, they are not electromagnetic waves or spiritual products. They actually exist."
"Ghosts have absolute power over humans. When you encounter a ghost, please don't run away, don't scream, don't ask for help, and don't attract other people. Your life is in the hands of the ghost, and the lives of others are in your hands."
"I am Chen Xuan, and I bear the price of this request in my own name—"
"I implore everyone to cover their mouths before death and leave a last way for mankind to survive." Researcher Chen Xuan - a speech made in 418 when the people of Xia Kingdom were announced to be fighting against the evil ghosts.