In Fahrenheit 451 what four reading items did Beatty say the old public let survive?

In Fahrenheit 451, Captain Beatty lists four types of reading materials that the "old public" (before the book burnings) was allowed to keep:

1. The Bible: This represents religious texts, which are often seen as containing moral and spiritual guidance.

2. The Constitution: This stands for legal and political documents, embodying the foundations of a society's governance.

3. The Dictionary: This represents knowledge and language, providing definitions and information.

4. The Book of Plays: This represents creative expression and artistic works, showcasing the power of storytelling and dramatic presentation.

These four categories represent the pillars of knowledge and culture that were considered important in the past but were ultimately deemed irrelevant and even dangerous in the society portrayed in Fahrenheit 451.