In this theoretical study we want to understand the concept brought by Nietzsche of Psychology as "morphology of the will to power" and also investigate the philosophical problem highlighted by Deleuze of releasing life peer resentment/bad conscience. We bring the concepts of will to power and eternal recurrence as elements to transform the weakening suffered by life under the deed of resentment and bad conscience. Thus, we cum to the notion that psychology can perform as study of the vital force's sensibility, working for strengthening life, freeing it from the burden of guilt and not been limited to the subject's interiority.>
life; strenghen; Psychology; will; potency