To become a personality means then to acquire brings back to consciousness of such relations where some are voluntary and the another necessary and although search of identity tires the man and this he is able to create a critic of itself that allows him to exceed its limits and to remember its freedom. By this the man only makes use of his reason when he has a paper that to carry out like the piece of a great machinery, which we can include/understand as nature or surroundings and turn that it into philosopher and scientist, one by the human side and another one of the study of the nature. Finally we will include/understand to the man like a being within the world, which locates like its place of origin and the place in which all acts concentrate, is where this the experience lives on the being. It has freedom to build and it acts in his surroundings according to the possibilities that to him are created, since he is conscious of his existence in the world, although this last one does not have of the existence of the man. Also one says that the existence of the man is an imposed state since it was brought but with the experience it obtains an opening that allows to look for the car him importance by means of the use of: it brings back to consciousness, that can define as source of all knowledge and action of the man, freedom that is from importance fundamental in relation with world, since the free act has its distinguishing and exclusive character in which it is not predetermined by any previous reality, is not only decision on this or that one but the decision of the human subject on itself and its possibilities of existence. The human freedom is then responsible freedom, call to be responsible for the realised acts.