Probably the best example would be the fox
•The fox was friendly and kept convincing the little prince to tame him
•He taught the prince that everyone is different and once you’ve become friends with someone you become responsible for them
•He also tells the little prince that “The only things you learn are the things you tame,” and also that “People haven't time to learn anything. They buy things ready made in stores. But since there are no stores where you can buy friends, people no longer have friends.”
•This probably means that the people no longer have any responsibilities and relationships on the fox’s planet (earth)
•He helped the prince realize that he is responsible for his flower