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Enlightenment, the answer to Louisa Ulrika's intellectual affinity, was an 18th-century philosophical movement that emphasized reason and scientific inquiry over superstition and blind faith. Led by influential thinkers such as Voltaire, Rousseau, and Locke, the Enlightenment aimed to dispel ignorance and promote knowledge, individual liberty, and societal progress. It profoundly impacted European culture, politics, and science, shaping modern Western societies.