In his Introduction to the discussion on the links between philosophy, literary criticism, and psychoanalysis at the Estates Generaux of Psychoanalysis in Paris in July 2000, Sergio Benvenuto claimed that

it is not possible to establish a scientific psychology of the inner world, but only of the public world which explains why, while the philosophers have engaged with Freud and Lacan, they have never discussed Klein, Winnicott and Bion, so that their paths have diverged.