In the second part of "Being and Time" (...) Martin Heidegger enriches and extends the discovery that was the main achievement of the first part: that the "Being" of man is care. To what extent does this concept characterize the whole of man, from beginning to end? In order to answer this question, Heidegger deals with the "end" of man, which is death. In everyday existence, people live mostly inauthentically. They forget their impending death and disregard a deeper acquaintance with themselves. However, there is commonly agreed upon a "voice," moral conscience, which substantiates the possibility of authentic existence. Heidegger asserts that if this voice is deeply heard, it calls upon man to approach himself and to exist authentically.