Sophie and Jansie were class-mates and friends. What were the differences between them that show up in the story?

Sophie and Jansie were class-mates and friends but both of them were completely different from each other. Sophie was a person who day dreamed, was ambitious, she had a lot of fantasizes and was not realistic. Sophie dreamt of earning a lot of money and becoming a famous person. Whereas, on the other hand, Jansie was realistic, grounded and knew what was in her fate.