Query: According to historian Roy Porter, what was the Age of Enlightenment trying to capture?
Context: The German scholar Ernst Cassirer called the Enlightenment "a part and a special phase of that whole intellectual development through which modern philosophic thought gained its characteristic self-confidence and self-consciousness". According to historian Roy Porter, the liberation of the human mind from a dogmatic state of ignorance is the epitome of what the Age of Enlightenment was trying to capture.