In "House Rules" by Jodi Picoult, the story delves into the complexities of a family dealing with the challenges of autism. The protagonist, Jacob, struggles with social interactions and interpreting social cues, leading to misunderstandings. This tension escalates when he becomes involved in a crime, prompting his mother and brother to confront both their love for him and the harsh realities of society's perceptions of individuals with disabilities.
The quote "Only the liar knows he's lying" suggests a deep understanding of truth and deception. It implies that those who distort reality are aware of their dishonesty, unlike others who may be oblivious to their own fabrications. This theme resonates throughout the novel as characters navigate their relationships and confront their own truths, revealing the emotional burdens and moral dilemmas they face.