Sometimes it will lead to better things later, but it can also be a change that can harm you. In many novels, authors make their characters change to help people clearly understand what the character is feeling and more importantly to move readers forward in the story. In Fahrenheit 451, Ray Bradbury makes Montag change to show us that Montag has learned that reading is useful in life and that it can still help you in most of your situations. Montag ends up assimilating better to Faber by the end of the story because he has expanded his vocabulary and learned things he didn't know before just by reading the book.