Finally, in the Afterword to Fahrenheit 451, Bradbury clearly expresses his own sensitivity to attempts to restrict his writing.
For example, he feels censored by letters suggesting he should give stronger roles to women or black men.
Through these actions, the firemen promote ignorance to maintain the sameness of society.
After befriending Clarisse, Montag finds himself unable to accept the status quo, believing life is more complete, true and satisfying when knowledge is welcomed into it.
If we become idle and complacent, we might as well be dead.
In the opening paragraph, the burning book pages are compared to birds trying to fly away.
Montag, in his belief that knowledge reigns, fights against a society that embraces and celebrates ignorance.
The fireman's responsibility is to burn books, and therefore destroy knowledge.
In his discussion with Montag, Beatty mentions dog lovers offended by books about cats, and cat lovers offended by books about dogs.
The reader can only assume which minority groups Bradbury was truly referring to.