Answer: Enlightenment Dream
Explanation: The the 1700s to the 1800s marked the period of Enlightenment and philosophers of the time such as Kant believed that one of the important conditions in achieving enlightenment is freedom. He also assumed that the people oppressing the weak in society will not want to give up their power.
Another thinker of the era of Enlightenment, Socrates believed in using public arguments to fight for what is right, in such a way that the powerful have no choice but to listen to the ruled
Dr. Martin King fought for freedom through arguments, without the use of violence. This is what this paragraph means by calling him an heir to the Enlightenment dream. He used methods thinkers of the Enlightenment Era believed would work in such a situation.