Now, everybody, I suppose, is aware that in recent years the silly business of divination by dreams has ceased to be a joke and has become a very serious science. ↗
Still, most of those effects occur in the context of harmless play and it is patently obvious that children are not normally turned into aggressive little monsters by TV or video games, since most children do not become aggressive little monsters. ↗
These things don't just come, arrive and settle like a bird picking up a few bits of crumbs. They develop. I think the best word for these things is develop. They develop because of the human beings who just happen to be there at the time. ↗
If the child is left to himself, he will think more and better, if less showily. Let him go and come freely, let him touch real things and combine his impressions for himself. ↗