What was the legacy of the Enlightenment Period?

Most importantly and in a social/political context, the legacy of the Englightenment Period was (through Montesqieu) the idea that all power should never be in the hands of one person or institution but divided over more, who also should control the others' proper functioning; and through Rousseau, the idea that a ruler only had 'the consent of the people' as legitimate base for his power and could forfeit his right to rule if he did not work in the people's interest.