To be unable to decide, to be in doubt. This turn of phrase goes back to the early sixteenth century, although the number two was not fixed. Jehan Palsgrave wrote (1530), “I am of dyverse myndes,” and in the eighteenth century several writers came up with as many as twenty minds. Dickens used both—“I was in twenty minds at once” (David Copperfield) and “. . . was in two minds about fighting or accepting a pardon” (A Child’s History of England).