The document discusses Enlightenment thinkers and their beliefs. It states that Enlightenment thinkers believed in using their own intellectual reasoning to determine what to believe and how to act, competing with traditional authorities. They supported ideas even if they went against customs, viewing independent reasoning as a path to a better human existence. It then lists some of the most well-known Enlightenment writers such as John Locke, Voltaire, Benjamin Franklin, and Denis Diderot, and provides brief biographies of each.