Montag doesn't understand anything he reads, he gets confused and Mildred would rather be occupying her time watching TV lets burn these books!!
I don't understand what I'm reading
He needs Faber to help him understand and to print books. Of course he says no because the books are stolen. Just plant the stolen books says Faber and have their houses burned.
"Not if you start talking the sort of talk that might get me burnt for my trouble. The only way I could possibly listen to you would be if somehow the fireman structure itself could be burnt. Now, if you suggest that we print extra books and arrange to have them hidden in firemen's houses all over the country, so that seeds of suspicion would be sown among these arsonists, bravo, I'd say!" (Bradbury 85)