This was fun. Like putting on a play, only more real. The little people did what Scott told them, inside of his head. If he made a mistake, they waited till he'd found the right way. They even posed new problems for him —
The cube, too, was a most instructive toy. It was teaching Scott, with alarming rapidity and teaching him very entertainingly. But it gave him no really knowledge as yet. He wasn't ready. Later — later —

Mimsy Were The Borogoves (1943)