What attitude or aspect of human nature is fire symbolic of fahrenheit 451?

Beatty says that the beauty of fire is that it destroys responsibility and consequences. If something causes divisiveness, it should be burned, destroyed. If something causes disagreement, it should be destroyed. If there is any literature, work of art, or type of entertainment that provokes people (or even a single person) to question the ways a society behaves and conditions itself, that should be destroyed.

According to humanists, the goal of all education was to benefit the public good.
By educating humans, the public good will immediately become better. Because if humans are literate and educated, they will be able to distinguish between what is right and wrong, and what is good and bad, and thus improve the society.