Throughout the story, Montag, the protagonist, and Beatty, the antagonist verbally fight. They throw quotes from books at each other to prove their points. Beatty's being that books cause chaos and confusion, and Montag's being that books teach us the right things.
Man vs. Society
When Montag and the other firemen have to burn the lady's house and she refused to leave this cause inner turmoil for Montag. He realized that there must be something inside the books that mad the lady want to burn with them.
Man vs. Nature
When Montag runs away after murdering Beatty, the Mechanical Hound chases him to the river before turning around.
Montag and Faber oppose the majority of the society-which do not believe that books are acceptable-when they developed the plan to destroy the firemen system.
After Montag gets back on land after floating in the relaxing river, all of his pain and thoughts rush back therefore causing fear. However, this fear leads him to the hobos that want Montag's help to make a difference in the society.
The main theme of the story is censorship. In the society, works of literature are not allowed. Instead they have "parlor walls" which are T.V. screens that completely cover the wall.