“Resentment” is one of the guiding concepts of Nietzsche's philosophy and perhaps even its most effective. In his new book The cold rage. Resentment theory and practice (Marburg 2024, Büchner-Verlag), Jürgen Grosse argues that since the 18th century, more or less all political or social movements have been those of resentment. Our main author Hans-Martin Schönherr-Mann has read it and presents major theses below.