Stéphane Van Damme, whom we admire for his works on the Age of Enlightenment, has reread for us the work of Tocqueville, a man who, in his love for individual freedom, mistrusted equality. Van Damme helps us to understand how, between the scientific revolutions of the seventeenth and the nineteenth centuries, positions on equality were readied within the scientific world before being activated in the political field. He resituates equality within a network of norms and practices and sees it manifested even within the very way nature was represented.