 While insisting on discontinuity and the concept of crisis underlying this discontinuity, Henri Wallon demonstrated his fidelity to the Hegelian theses of the dialectic.In this regard, Wallon differed from Jean Piaget, who in his own description of the stages of infantile development instead valorized interactions to the detriment of discontinuity.Henri Wallon had a marked influence on psychoanalysis equally in France and abroad.