The view is presented, that investigations involving theories of prosocial behavior do not take advantage of coherent sources derived from the heritage of human thought. There are elements of the knowledge from historio-philosophical and religion studies, where a scientific psychological analysis could favorably occur, as a contribution for prosocial behavior theory. Some ancient texts are indicated. It is presupposed that the genesis of the discussion of the altruism phenomenon and an initial formulation of the concept, could be associated with Aristotelian `Nicomachean Ethics'-not as has been usually considered, with Comte's `Catechisme Positiviste'. There is performed a short theoretical exploration on the portion of the Aristotelian text, concerning its value for prosocial behavior theoretical studies. The genesis and meaning of the concept of charity are discussed, revealing its roots in the text of the New Testament. The moral and practical values of this concept are emphasized, and are regarded as essential for the prosocial behavior area. It is pointed out that a very selective choice should precede those postulated analyses.