be of/in two minds, to

To  be  unable  to  decide,  to  be  in  doubt. This turn of phrase goes back to the early sixteenth century, although the num- ber two was not fixed. Jehan Palsgrave wrote (1530), “I am of dyverse myn- des,” 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).