How did Beatty lie to Montag?
He told Montag that in the past firefighters had never extinguished fires, they have always started fires.
He told Montag that historically, the majority of firefighters were women.
Beatty claimed that authors were always regarded as outcasts, writing has always been regarded as a low brow profession.
Beatty told Montag that he very much valued their friendship and relationship as colleagues.
He led Montag to believe that he [Beatty] was once an English professor.