The idea of "simplified classics" made me recall some observations from John Holt:
The bright child is patient. He can tolerate uncertainty and failure, and will keep trying until he gets an answer. When all his experiments fail, he can even admit to himself and others that for the time being he is not going to get an answer. This may annoy him, but he can wait. Very often, he does not want to be told how to do the problem or solve the puzzle he has struggled with, because he does not want to be cheated out of the chance to figure it out for himself in the future. . . .
The bright child is willing to go ahead on the basis of incomplete understanding and information. He will take risks, sail uncharted seas, explore when the landscape is dim, the landmarks few, the light poor. To give only one example, he will often read books he does not understand in the hope that after a while enough understanding will emerge to make it worth while to go on. In this spirit some of my fifth graders tried to read Moby Dick. . . .
We adults destroy most of the intellectual and creative capacity of children by the things we do to them or make them do. We destroy this capacity above all by making them afraid, afraid of not doing what other people want, of not pleasing, of making mistakes, of failing, of being wrong. Thus we make them afraid to gamble, afraid to experiment, afraid to try the difficult and the unknown.
From How Children Fail (1964)