“If she had listened to her father, if she had listened to the cousin's husband, she would never have married Note and the years of unhappiness would never have occurred. But they did, because she was headstrong, as everyone is at the age of twenty, and when we simply cannot see, however much we may think we can . The world is full of twenty-year-olds, she thought, all of them blind.” RegretUnhappinessHeadstrongTwentyIgnored Advice Book:The No 1 Ladies' Detective Agency 10 Books Set Source: The No 1 Ladies' Detective Agency 10 Books Set