On the occasion of the 30th anniversary of Franco Fornari’s (1921-1985) death, a debate that occurred at a round table titled "Martin Buber’s influence on modern psychiatric thought" is reprinted. This round table was held at the "First training course on problems of psychotherapy", organized in Milan on December 11-14, 1962, by the "Milan Group for the Advancement of Psychotherapy" (which later took the name of Psicoterapia e Scienze Umane). The round table was chaired by Franco Fornari, and the panelists were Pier Francesco Galli, Virgilio Melchiorre, Mara Selvini Palazzoli, and Enzo Spaltro; interventions were made also by Leonardo Ancona, Enzo Codignola, Gianfranco Garavaglia, and Silvia Montefoschi. In particular, Martin Buber’s positions on the concept of "I-Thou" and his idea of dialogical principle are discussed. At the end there is a Postscript by Pier Francesco Galli, who was among the organizers of that round table.
Keywords: Martin Buber, dialogical principle, I-Thou, intersubjectivity, Carl Rogers