Gadamer says, “One day someone should write the history of ‘purity.’” He cites one H. Sedlmayr, who “refers to Calvinistic purism and the deism of the Enlightenment.” Kant would play a key role: He “linked himself directly with the classical Pythagorean and Platonic doctrine of purity.” Gadamer wonders whether “Platonism is the common root of all modern ‘purism.’”