Piaget, far from being an isolated and refractory erudite, considers friendship to be an unquestionable value, as attested by certain letters and testimonies. He cultivates close friendships from adolescence; intellectual friendships, often mixed with admiration and enthusiasm, forged during his many travels; as well as friendships with students from the Rousseau Institute, for whom, as Elisabeth de Miribel wrote, the greatest legacy is that of “learning to be free”. All these relationships are cultivated during discussions, parties or meals, as well as during group trips or during activities in the academic world. These friendships also have a Socratic aspect, as a former Piaget collaborator testifies. In these relationships the other of the interaction becomes “more intelligent”.