In this paper I am going to examine and discuss Martin Heideggers concept ”Das Man” and the closely related ”Man-Selbst” as they appear in his work Being and Time. My main goal is to argue for a normative understanding of these concepts and the overall theory surrounding them, i.e., argue for a reading in which Being and Time is not understood merely as a descriptive investigation of fundamental-ontological existentials, but also as arguing for a certain way we ought to exist, or rather: arguing for that we ought not to be in the way of ”Man-Selbst.” In order to do this, however, I need to introduce some of the key concepts of the work, such as ”Dasein” and ”In-der-Welt-sein”, and this is what the first part of the paper is dedicated to. In the second part I examine the methodology in Being and Time and how it necessitates a special kind of semantics called "formal indication." In the third part I more closely examine the passages of the work in which the key concepts ”Das Man” and ”Man-Selbst” appear. In the fourth I will lay out my arguments for the normative reading. / <p>Läsår Höstterminen 2018</p>