What is mainly the significance of the phrase nullius in verba in relation to enlightenment ideals?

The main idea that no one has authority over other people's opinions or points of view. The Enlightenment had the same precepts, trying to create logical thinking, and the people's freedom to say and share their visions about the world.

Explanation:

Nullius in Verba, in a free translation from Latin, it means "Take nobody's word for it". It is the motto of the Royal Society, founded in 1660, John Evelyn and other members of such a society chose this motto soon after founding the Society.

in the line from the end of the story "the cask of the amontillado," by edgar allan poe, the narrator has put the last stone on the wall, thus sentencing fortunato to death. just like that montresor associates his feeling of sickness to the humidity of the catacombs, and seems to be glad he has taken revenge on fortunato. however, montresor's last words are "in pace requiescat," which mean "may he rest in peace." as a result, it can be inferred that he hides or does not want to assume his guilt or remorse for killing fortunato in such a horrible way.