This article considers the philosophical foundations of the French Enlightenment through a close study of the Stoic influences on the Marquis de Condorcet's education philosophy. The article argues that although Condorcet did not acknowledge any direct Stoic influence, his philosophy of education nevertheless should be understood in the eclectic idiom of eighteenth-century Stoic discourse. Furthermore, Condorcet's Stoicism was entirely compatible with Rousseau's Stoicism to the degree that one could call Condorcet a Rousseauean at least in matters of education theory—even though Condorcet, a protégé of Voltaire, is usually presented as a critic of Rousseau. Finally, the article suggests that the notion of liberty that Condorcet seeks to make flourish through his national education plan is in line with the Stoic ideal of rational autonomy, despite Condorcet's insistence that the modern idea of liberty (that is, his own idea) is fundamentally different from the ancient idea.