French philosopher Charles Renouvier played an influential role in reviving philosophy in France after it was proscribed during the Second Empire. Drawn to the ideals of the French Revolution, Renouvier came to recognize that the free will and civil liberties he supported were essential to the pursuit of science, contrary to the ideologies of positivists and socialists who would restrict liberty in the name of science. He struggled against monarchy and religious authority in the period up through 1848 and defended a liberal, secular form of political organization at a critical turning point...