However, faced with this world of faithful and complicated objects, the child can only identify himself as owner, as user, never as creator, he does not invent the world, he uses it: there are, prepared for him, actions without adventure, without wonder, without joy. He is turned into a little stay-at-home householder who does not even have to invent the mainsprings of adult causality, they are supplied to him ready-made, he has only to help himself, he is never allowed to discover anything from start to finish.

The merest set of blocks, provided it is not too refined, implies a very different learning of the world; then the child does not in any way create meaningful objects, it matters little to him whether they have an adult name; the actions he performs are not those of a user but those of a demiurge. He creates forms which walk, which roll, he creates life, not property: objects now act by themselves, they are no longer an inert and complicated material in the palm of his hand.