This chapter opens with a conversation between a young woman and an old woman. The young woman asks the old woman if she can have a match. The old woman tells her that since ancient times Chinese medicine has paid particular attention to disease diagnoses. Whoever has the best prescription can cure the patient. She tells the young woman to go ahead and do it. The woman says that she doesn't know the kind of medicine the woman is using, but she knows what kind of Chinese medicine she's using. It's called buyang hukou decoction and it's the most commonly prescribed medicine to treat stroke. She's read hundreds of cases like this one when she was studying after her master. She says that he's cured seven to eight patients so there won't be any mistake. He also says that the woman should be careful with her medicine because if it goes wrong, she'll regret it later. He tells the woman to be cautious of her medicine, because if anything does go wrong, it will be too late for her to regret it. He says that a naive girl like this can't really know what's best for her. She also tells him that the military doctors in the soviet Union have been treating him for a year and a half, but they've been unable to give him an effective prescription. They even want to convince him to go to Germany, but he says that if he listens to what she says,