In this piece, the author attempts to establish connections between a clinical situation and certain ideas of Bion and Freud that could be called informal, as they are not mentioned in published scientific works, but rather in supervision in the case of Bion, and in Freud's correspondence. The author believes that we find in these ‘informal’ materials a rich source which has hardly been exploited and which shows similarities in the way both Bion and Freud work in terms of humility and intuitive sense of truth.