Peter Sloterdijk maintains that modern institutions and their fundamental ethos, namely self-discipline, training and the orientation to achievement, can be traced back to spiritual self-mastery and ancient ascetic models, exemplified in Christian monastic life. This article examines the bases of this claim and argues that Sloterdijk’s theory empties ascetic formations of their concrete content and removes them from their historical context. The ambition to derive the main features of modern society from a single matrix necessarily produces abstractions and self-serving definitions (...) with very little explanatory value. (shrink)