I propose to elucidate the education from the anthropological assumption that man is stretched between an initial state of helplessness and a final state of perfection: the course of this journey is education as a task whose subject is the learner himself and which counts with the main help of the parents. The roles of these are diversified mainly as host and as introduction to the external world, respectively. In the access to reality the game with the serious rules that preside over it plays a special role. These rules mark the passage from the illusory to the real, presented as what is interesting objectively correlative of an interest. Piaget formulates it as the transition from the solo play to the cooperative play and from heteronomy to autonomy.