* Books as weapons: The firemen, whose job is to burn books, view books as dangerous weapons that can incite rebellion and disrupt the status quo. They see them as a threat to the "peace" and happiness of the society.
* Knowledge as ammunition: The books contain knowledge, which is compared to ammunition. This knowledge, when shared and understood, can be a powerful force for change and enlightenment.
* Reading as firing: The act of reading is compared to firing a gun, as it releases the potential of the knowledge contained within. It can inspire people to question, think critically, and challenge the established order.
The metaphor of a "loaded gun" highlights the revolutionary potential of knowledge and the fear that the ruling class has of it. It also suggests that ignorance is a form of control, and that suppressing knowledge is a way to maintain power.