The study wants to iluminate the begining of modern times treating the richness of the subjectivity experiences in Renaissance culture. The complexities of that should be look in the analysis of the complicated relations between the humanistic ideals and the religious reformations movements and his respective evolutions. First, in the relief, emerges in primeval Renaissance, a impulse for interiozation of religious sentiment, which, in alliance with the rescue of the values of the Antiquity, makes itself in the roots of a new cristianity, centralize in the valorization of man and the world, in the power of the spirity in reaching the salvation, without the intermediation of institutions of the Church. The religious reformations movements, first in the roots of the humanistic renovator impulse of men like Nicholas de Cusa, Pico Della Mirandola and Erasmo de Rotterdã, should be, in a second time, aparted of him, since Lutero and his religious sentiment which condemn the human spirity and his mundane experience. The analyses of the discussion about the free arbitre between Erasmo and Lutero shows to us the confrontation of two diferent conceptions of man, which have their impact, many times imprevisible, in the formation of modern times.