This essay reconceptualizes fanaticism as an activity that does not rely on the condemnation of 'fanatical' acts as "a priori" 'irrational.' Rather, it theorizes fanaticism as a method of ethical and political critique against a regime of representation. It also argues that it is crucial to understand fanaticism through an approach that does not set up a dichotomy between affect and reason, disavowing the 'irrational' behavior of fanatics. Drawing on affect theory and particularly the entanglement of feeling-thinking, this paper emphasizes that fanaticism is better understood within a framework that takes seriously the role of affects. Such a conceptual framework has important pedagogical implications for how to address fanaticism in education. This essay suggests that it is crucial to invent pedagogical strategies that are rooted in a reconceptualized notion of fanaticism that pays attention to its ethical, political and affective dimensions.