Abstract
This article analyses the text of Natorp's lecture given at the Kantgesellschaft in Halle in 1912 (Kant und die Marburger Schule) and attempts to describe what is meant by "transcendental method" for Paul Natorp. The aim is to compare the theses of the Marburg philosopher with the Kantian dictates of the first Critique and to show how Kant's philosophy of culture can be defined. Furthermore, it will be shown here how the dense account of '12 is also a fundamental tool from the point of view of the critical examination of the New Kantian's reflection, since it was presented in the same year as the publication of the Natorpian Allgemeine Psychologie nach kritischer Methode, one of the philosopher's most controversial and debated works.