If you had a million years to do it in, you couldn't rub out even half the "Fuck you" signs in the world. It's impossible.

The line is spoken by Holden Caulfield in J. D. Salinger’s novel The Catcher in the Rye (1951). In the later chapters, Holden is in New York with his younger sister Phoebe and becomes fixated on obscene graffiti (“Fuck you”) he finds in public places, including a school. He tries to erase the words to protect children from encountering them, but quickly realizes the futility of the task. The moment occurs during Holden’s escalating crisis—his desire to preserve innocence colliding with his growing awareness that he cannot control the world’s corruption or cruelty.

Holden’s remark crystallizes one of the novel’s central tensions: the longing to shield innocence versus the inevitability of exposure to adult realities. The obscene graffiti functions as a blunt emblem of a world that intrudes everywhere, even into spaces meant for children. Holden’s attempt to “rub out” the words mirrors his fantasy of being the “catcher in the rye,” saving children before they fall into experience. His conclusion—“It’s impossible”—is both despairing and clarifying: moral contamination cannot be erased by individual vigilance, and his compulsion to do so reveals the depth of his anxiety, grief, and need for control.