What is the central idea of the novel Fahrenheit 451?

The central idea, or main theme, of the novel Fahrenheit 451 is censorship. In Bradbury's dystopian society, the authoritarian government censors all works of literature, and it is illegal to own books. Firefighters are employed to burn books and destroy all works of literature which are reported to the authorities. Those who possess books are immediately taken to prison. Bradbury explores the dangers of censoring intellectual thought by illustrating Montag's meaningless existence. Captain Beatty explains how society prefers visual entertainment and condensed information, and disapproves of criticism. Bradbury comments on the importance of preserving history and learning from past mistakes to improve humanity. He also mentions how literature captures life in infinite detail, describes authentic experiences, and allows readers leisure time to escape from their hectic lives. The dystopian society's collapse reveals the dangers of censoring intellectual thought, while Montag's revival illustrates the significance of literature and knowledge in one's life.