Final answer:
Frederick the Great of Prussia implemented modernizing reforms, such as creating an extensive educational system and enhancing the military.
Step-by-step explanation:
During the Enlightenment, Frederick the Great of Prussia did not revert back to old habits, contrary to the statement given. In fact, he was known for his modernizing reforms and policies. One of his notable achievements was the creation of a more extensive educational system, which aimed to improve the intellectual and cultural development of the Prussian citizens. Additionally, he also implemented reforms to enhance the military, which included freeing people from serfdom to join the army and establishing a well-trained standing military force.
Learn more about Frederick the Great's reforms during the Enlightenment