Answer:
By describing what Stanley's mother often said when Stanley and his dad got discouraged.
Step-by-step explanation:
In this excerpt, the author provide details to suggest that Stanley's mother often chose to focus on the positive side of a situation by describing what she often said when Stanley and his dad got discouraged.
Stanley's mother would say that their great grandfather could make it big in the stock market and that it was all because of good luck.
However, she would choose not to tell about the bad things happened to him when he moved from New York to California. Rather she would remind Stanley and his dad there was no such thing as curse in the Stanley family.