This work of Martin Heidegger, it is a bit difficult want to define the being of man. To do this the author takes us into the Dasein (being the there), whose translation is difficult in complex concepts from the 1st part with such terms like the disposibilité the conjointure, and the ouvertude everyday who want to fix the mondéité to be. It is trying to define the concept of being himself and with his surroundings. In the 2nd part, where we approach the time but designed as temporellité, the author presents the Dasein as being late (to be death but also be to the act or the future), it defines also the time in his everyday life, the past, now and future, always according to the being. Regret that the Greek words and Latin phrases we often refer to the end of the book so it takes a lot to handle and those who do not want to get into a book as a result, it is possible to read the same author "What is metaphysics?". Elements are already available to the Dasein or anxiety, or worry about who makes the temporellité. It should if possible still reading this major work that is "Being and Time" M. Heidegger, taking his time and without bias for the chaotic course of the life of this author, but considering it from the point of view of Philosophy.
