How do Montag interactions with Mildred and Clarisse develop the author's commentary on human communication

The Hearth and the Salamander', the first of three parts comprising Fahrenheit 451, chronicles Montag's realization that he is unhappy and unfulfilled and marks the beginning of his quest to change his life. In this section, Bradbury advances the larger idea that without the freedom to seek truth, it is impossible to find true fulfillment. This concept is expressed through the clear contrast between the three major characters we meet in this section. Millie is unaware of and uninterested in her capacity for original thought. She is so miserable that she escapes from reality by constantly immersing herself in her seashell radio, three wall parlor room television, and an addiction to sleeping pills. Sadly, Millie doesn't even recognize her own dissatisfaction and refuses to admit she attempted suicide.

In contrast, Clarisse is truly, perfectly content with her life. She is curious about the world, and takes great notice of nature, social constructs and the behavior of people around her. Clarisse comes from a family where people sit around and talk at great length, a concept Montag finds staggering. Unfortunately, Clarisse falls victim to a speeding car, one of the aspects of society she despises so much.