Montag gains the courage needed to stand up for something in which he believes. He does not think that people should just sit in their living rooms and listen to the walls. Claire has opened his eyes to the possibilities of the future as well as the memories of the past--she is the beginning of the questions Montag begins to ask, and books finish the job. Through books, Montag has learned to question and not to just accept what he is told. He rejects the information fed to him by Faber about why books must be burned. He makes a choice to keep the books even though he is afraid of the hound and of the consequences. Books change him into a better, more thoughtful human being.
Montag gains what many others have found in books, freedom of thought. He has been living in a society that is politically and socially repressive. All members of society must conform to one way of both thinking and acting. Books offer many different opinions about life and the human condition. Even though all literature ultimately deals with the question "What is it like to be human?" , they all offer different perpectives on the subject. Thus Montag is no longer forced into acting and believing one way, but he now has options.