Motifs

Paradoxes:

A paradox is a statement that seems self-contradictory but expresses a possible truth. In this story there are a lot of paradox regarding the different characters. One example, is when Montag describes his bedroom as "empty", but then as "indeed empty" because Mildred is physically there, however her mind and thoughts are else where. (Pg 21) Another paradoxes found in the characters of the book are: 

Montag: He is a firemen whose job is to burn books, but he also is against that and actually likes books.

Clarisse: She is an anti-social teenager, but at the same time she is very social with the people, however for the society being that independent is anti-social.

Faber: He knows how unjust is the law and how corrupt society is, but he still follows them.

Mildred: She is alive, but she is not living her life, she is like a robot, always doing what people tell her to do and not live for herself.

Society: They are corrupt, equal and claimed to be happy without books, but at the same time they are committing suicide and murder.

https://www.desertcart.ae/products/12657355-literary-terms-mini-quote-poster-set-featuring-alliteration-foreshadowing-irony-metaphor-onomatopoeia-paradox-personification-and-symbolism-educational-art-prints

Religion:

In addition, the book has a lot of references of the Bible and christian believes. In the first part of the novel, Captain Beatty makes a reference towards the "Tower of Babel": "Where's your common sense? None of those books agree with each other. You've been locked up here for years with a regular damned Tower of Babel. Snap out of it! The people in those books never lived. Come on now!" (Pg 35). He is basically telling the society of   that time that no matter what amount of books they have, they would not be reading the truth and they would not be able to be successful in life because books only tell stories of someone’s life and work instead of telling the truth and being useful to help have more advance technology or something better in life; also that everyone has to be equal, and it is illegal to be different. On the other hand, Montag feels a strong connection with the Bible and thinks he needs to memorize it all in order to keep the this books at least in his mind before anyone finds out he has the only Bible left in the world and burns it. This specific book from ancient times also is important in Faber's life because he was a professor and even though he is old, he know that the Bible is more than a book and can teach many generations. 

http://www.financetwitter.com/2014/10/bibles-burning-ibrahim-ali-was-kind-hearted-with-good-intentions.html

Animal and Nature imagery:

Throughout the novel, Ray Bradbury uses imagery to show an importance in nature and animals. Although animals during this time isn't something everyone has or knows, there are some "robots" with an animal form that act like real animals even if they aren't, these are the mechanical hound and the electric-eyed snake machine; the author does this in a ironic way to show how the people is obsessed with technology and ignores nature. On the other hand, nature is representing innocence and truth; it is present when Clarisse makes Montag taste the rain and when Montag escapes the city and goes to the country side where he finds a revelation in nature. "And sometimes, I tell them, I like to put my head back, like this, and let the rain fall into my mouth. It tastes just like wine. Have you ever tried it?"(Pg 10)

http://inspire.cdnimages.in/nature-animals/

http://www.dictionary.com/browse/paradox
http://451fahrenheit.weebly.com/motifs-of-the-novel.html 
http://www.secret-satire-society.org/wp-content/uploads/2014/01/Ray-Bradbury-Fahrenheit-451.pdf