The task of psychology, as social conscience, must be of in offering possible most complete the clearer explanation to them and on the nature of the human beings as people. The study of the person, who is, in principle, the objective of psychology, can only be carried through in a serious way and accomplishes when considered the position of this person in the general configuration of the things. The Psychology in a general way if has worried about: development, including the maturation and the hereditary succession; the agencies of the direction; the nervous system, muscles and endcrinas glands; the learning; the perception; the motivation and the emotion. With the purpose to try to understand: the language, the thought and the resolution of problems; intelligence, also its measure; the personality; the pathological behavior and the behavior of people in group. Objective psychology to use this knowledge stops helping in them in the understanding of we ourselves, the understanding of people with behavior riots, as well as improvements the techniques of learning and the efficiency in the work. It is without a doubt, our main hope of clarificar aspirations of the man and to discover the ways to carry through them.
Psychology is not a unitria thing, is not a normative science, nor accumulating, but, before, a classification of facts, presuppositions and theories. To understand the diversity of Psychology it is necessary to recoup its history, therefore the past and the future always are in the gift, of this form the history of its construction are on at each historical moment. The Greeks had been the evolved people more of its time, with a planned production and well-occurred he allowed the construction of the first city-states, with this they had initiated the conquests of new territories that had generated wealth and growth. These advances had allowed that the man if occupied of the things of the spirit, Plato and Aristotle had dedicated to understand it the man in its interioridade.