The Question and Answer section for Fahrenheit 451 is a great resource to ask questions, find answers, and discuss the novel.
Beatty is passionate in that he dismisses Clarisse and her family as "odd" and counter to what is "normal" thinking. Beatty is in fact very intelligent. He understands the other side, the side of knowledge and depth. Beatty just chooses to...
He realized that Montag wasn’t there to burn his house, and that Montag was in possession of books.
All of Montag's reactions are a result of nerves. He feel guilty and nervous about stealing the book, and he's too frightened and nervous to go to work when he thinks Beatty is going to call him out on the carpet.