This paper gives the main results of a research on Piaget's theory of morality. In the study of his texts on morality, the method of structural analysis was used. This analysis made it possible to discover in Recherche his initial research project and to propose an original interpretation of his book The moral judgment of the child. Besides, it became evident that he tried to outline the way which leads the human being from a non-moral world to moral autonomy. These results show that his theory of morality, as well as his theory of knowledge, may be understood as an evolving kantism.
Ethics; moral development; constructivism