An unpublished writing of Norberto Bobbio on the Centre of Methodological Studies of Turin. The text reproduces the last speech of Norberto Bobbio on the Centre of Methodological Studies of Turin, one of the first and most important Italian research centers in which the philosophical tradition in thought was to merge with scientific research. Written in 1987 primarily in honor of Ludovico Geymonat, one of the leading heads of the Centre together with Bobbio, it encompasses the whole story of the association from its initial disruptive phase up to the most ineffective and dispersive last years. The editor points out in this report the valuable references to the numerous and very important activities of the Turin Centre, but also the following three questionable presuppositions behind its activity: 1) identification of the Centre of Methodological Studies with Geymonat’s thinking; 2) existence of a unitary theoretical pattern in the Centre’s activities; 3) the neo-positivistic nature of this unitary theoretical pattern.