I've gotten three weird pieces of spam today (weirder than usual):

Subject: 1-4 extra inches makes a massive difference
From: "svetlana garza" <0005644986@aedmonet.demon.co.uk>

information update please wait

Not at all, returned Nick Chopper

This will enable you to go wherever you please, while in Paris, he said

* * *

Subject: Are you tired a lot?
From: "lorine payne" <angelitatoomer@oddpost.com>

spring special offer
important message being loaded

So he placed Dorothy upon one side of him and the boy upon the other and set a lantern
upon each of their heads

Moreover, he was full of boyish recklessness and irresponsibility and therefore difficult to
impress with the dignity of science and the gravity of human existence

* * *

Subject: Summer Special
From: "miranda ray" <livenlearn13@adage.it>

scientific news and health information for you
Three seconds longer until image is loaded

It is not necessary for me to eat, observed the Sawhorse

This short flight, however, had greatly astonished the blacks, who, seeing his body suspended in mid-air, immediately hailed him as a god, and prostrated themselves upon the ground before him

Each of these had a picture that failed to load after the sales portion.

The quotes are obscure. The first are obviously from the Oz books, which I am familiar with. Nick Chopper is the Tin Woodman's real name, and everyone knows who Dorothy and the Sawhorse are.

The second set of quotes threw me, but with the internet few things can throw me for long. They are from another L. Frank Baum book, "The Master Key," which I had never heard of until today.

What is the purpose of these quotes stuck on the end of spam? What does it all mean?