The Enlightenment was a verbal war against the upholders of tradition and authority. Denis Diderot was part of the the eighteenth century guild of writers, publicists, and political reformers who pioneered revolutionary thoughts; The people who Questioned the Authority were not tolerated and they landed in jail. These philosophers risked everything Everything from their family to their lives, just to spread their propositions, about exploited principles such as freedom of press, trade, reason, and education. Denis’s Life work was the Encyclopedia, a weapon that can go against ecclesiastical and governmental institutions, that greatly influenced the revolutionary war. The Encyclopedia covered all the areas in, science, technology, politics,