Tradition has dramatized their first meeting into the story given by Cresacre More' - that the two happened to sit opposite each other at the lord mayor's table, that they got into an argument during dinner, and that, in mutual astonishment at each other's wit and readiness, Erasmus exclaimed, " Aut tu es Morus, aut nullus," and the other replied, " Aut tu es Erasmus, aut diabolus !