Bion's Legacy to Groups - Selected Contributions from the International Centennial Conference on the Work of W. R. Bion Turin,

'It is characteristic of some forms of scientific genius to alter not just what we see in the world, but how we see it - not just the view, but the lens. One thinks of Freud's discovery of the transference, or of Melanie Klein's attention to the play of children. Wilfred Bion's study of groups and group processes also has this quality.