This paper reviews the concept of the Other in the philosophical works of Emmanuel Lévinas. On this concept Lévinas builds his ethics of the Other – ethics of the responsibility for the Other. The concept of the Other (fra. Autrui) refers to the other man with whom we enter a ethical relationship, a relationship which is based on the principle of responsibility for the Other. The Other appeares before us as a face, as someone with whom we have a conversation, as a subject, and as transendence itself. The face is the central concept of Lévinas's thoughts about the Other and ethical relationships with the Other. The face of the Other appeares from proximity in the form of the sensible experience of our own existance, which allows a different kind of constitution of the identity of the subject. The identity of the subject is no longer defined by the Same, but is now defined by the Other. The subject is „I“ – a person, not an ego. The Other, as someone with whom we share a conversation, is embodied in speaking. With the idea of infinity Lévinas describes the relationship with the Other who in this relationship perserves its alterity. This in turn prevents the reduction of the Other by the Same and its closing into totality. The paper expalins the underlying concepts of the Other as well as our relationship to the Other. It does so in order to state that without our personal accepting, acknowledging and unconditional responsibility for the other man, with which we put his/her rights and freedom before our own, it's impossible to achieve our own humanisation aswell as the humanisation of the world as a whole. With this Lévinas wants to overcome the eminent violence directed towards the Other aswell as not acknowledging the Other, which are present in Western philosophy and modern society.