Analyze the similarities and differences between mother and sister in The Cousin's Arrival.

* * * Similarity: No one looks down on (belittles) their own children, but thinks that others' children are better and hopes that their children are the same as others'.

Difference: Menstruation wants her children to be models, play basketball and be sensible and filial. Besides, my mother likes children who are as smart and study well as my cousin.