I agree with post #2, as Montag is, at this point, simply second guessing himself and what he and Faber are trying to do. Montag is confused throughout most of the book, remember, and truly wants to be happy, if only he can figure out a way to do it without being sedated like his wife, or willfully ignorant like his wife's friends. Once Clarisse has opened his eyes to independent thought once again, there is no way to shut them again, and this frightens, exhilarates and liberates Montag.
Montag says this to Faber after he's read the poem, "Dover Beach" to Mildred and her guests. One of the guests, Mrs. Phelps, begins to cry when Montag reads the poem. Mrs. Phelps' husband has just been called up to fight in the imminent war and the poem is about war, separation, and the effects of the two so it affects Mrs. Phelps due to its similarity to her life. When Montag then makes the comment to Faber, he's remembering what Beatty told him about why books were banned - they made people think and subsequently sometimes feel bad. He only has this thought for a moment before Faber brings him back to reality by telling him that it's OK to make mistakes - we learn from them even if they hurt us. So, to answer your direct question, no, I do not believe Montag's statement is correct and Bradbury didn't either obviously.