While ancient civilizations worshipped strong, active emotions, modern societies have favored more peaceful attitudes, especially within the democratic process. We have largely forgotten the struggle to make use of thymos, the part of the soul that, following Plato, contains spirit, pride, and indignation. Rather, Christianity and psychoanalysis have promoted mutual understanding to overcome conflict. Through unique examples, Peter Sloterdijk, the preeminent posthumanist, argues exactly the opposite, showing how the history of Western civilization can be read as a suppression and return of rage.