Pausing in the investigation of two major models that characterize the political thought, namely the classical model (greek or aristotelian) and the jusnaturalist (hobbesian), the article in question, distinguishing within that idealist and realist theories, establishes a approach that emphasizes border since the latter issue that involves “How did the State?” proposed by the historicist perspective (aristotelian paradigm), which brings the man as the foundation as “political animal” until reading rationalist (parameter hobbesian) waving to the problem “Why is there State?”, identifying the man as naturally antisocial, stressing that the common good determines the platonic-aristotelian view, reading establishes a hobbesian logic that emerges through the social contract and highlights the natural tendency of self-preservation as the foundation of human action, consisting, in short, the transition from the mechanics of the matter to the final order of the will.