 Stevenson does not assume that interpersonal disagreement always signals that one is intending to get another to change their beliefs or attitudes, to win the argument as it were. It may, and often is, the case that one is open to having their own beliefs or attitudes changed in the course of open-minded discussion or deliberation. Thus neither disagreement in belief nor disagreement in attitude need be an “occasion for forensic rivalry; it may be an occasion for an interchange of aims, with a reciprocal influence that both parties find to be beneficial” (1944, 4–5).