What is a thesis for A Christmas Carol?

A Christmas Carol, by Charles Dickens, teaches humanity many important life lessons. These lessons are taught to Scrooge by each Spirit as he visits his past, sees the present, and previews his future. By learning the lessons of all three Spirits, he is transformed from the meanest of all men to "as good a man as … any good old city, town, or borough in the good old world." The lessons of all three Spirits were necessary for this monumental change to take place.

When Scrooge goes back into his past, he remembers important facts that help him to change his ways. Scrooge learns many important lessons that help him to change as The Ghost of Christmas Present and he travel the world on Christmas Day. You must write a good closing paragraph that restates the thesis statement in different Words than in the opening paragraph.