Answer:
One of the central theme is "Reputation".
Explanation:
The Crucible by Arthur Miller is story about John Proctor who confesses to all his crimes in the court. He accepts his affair with Abigail and even for doing witchcraft. But, at the end he says "I have given you my soul; leave me my name!”. By this he meant that a person takes his whole life to build a reputation in the society. So, he did not want to tarnish his good name and reputation by signing the confession. He said that he has confessed all but will not sign the document.
Several characters including Abigial, Parris, Rebecca protect their reputations in the story.