What ONE idea that came out of the Enlightenment period had a major impact on the politics and nations of the modern world?

The idea that reason is the primary source of authority and legitimacy, and advocated such ideals as liberty, progress, tolerance, fraternity, constitutional government, and separation of church and state.

Explanation:

The Enlightenment brought political modernization to the west, in terms of focusing on democratic values and institutions and the creation of modern, liberal democracies. Enlightenment thinkers sought to curtail the political power of organized religion, and thereby prevent another age of intolerant religious war.

an earnest tone.

because portia wants to know why brutus has been acting strange lately.

not sure but thinking i'ts cause the government was broke. not sure