We shall simply say then that every action involves an energetic or affective aspect and a structural or cognitive aspect, which, in fact, unites the… - Jean Piaget

The individual acts only if he experiences a need, i.e., if the equilibrium between the environment and the organism is momentarily upset, and action tends to re-establish the equilibrium, i.e., to re-adapt the organism (Claparède).

Education, for most people, means trying to lead the child to resemble the typical adult of his society... But for me, education means making creators... You have to make inventors, innovators, not conformists.

"Most instincts are allied to specialized organs, it is true, but it is nonetheless true that perception and acquired behavior, including the higher types of operative intelligence, do, in a more supple way, manifest certain functional possibilities or "reaction norms" of the anatomical and physiological structure of the species. In a word, the general coordinations of action upon which the building up of most basic types of knowledge is conditional, presuppose not only nervous coordinations but coordinations of a much more deep-seated kind, those which are, in fact, interactions dominating the entire morphogenesis."