The newborn child shows a sudden, energetic, marvelous development in the first period; after that, his development is less impressive. The greatest...

These three periods, from birth to six, from six to twelve, and from twelve to eighteen, are clearly distinguishable from one another, in terms of...

From birth to six is a time with special characteristics, which are very different from those belonging to the period from six to twelve – so...

There are different periods in life when we can acquire different abilities. Little children can do things that older ones are no longer capable of...

For the first time we realized that the young child has powers which are lost as it grows older. It is a matter of the evolution of each life...

This was the first time that we had evidence that the intelligence of man does not progress forward, becoming ever greater. At the different ages...

Each plane must be lived through fully in order to pass with mastery to the next.

We might say that the younger children take in things sensorially. The child of seven enters the abstract field, he wishes to know reasons. It is...

In a school we were carrying out experiments in biology; there was an aquarium that was accessible to children from three to nine years. One morning...

With regard to the child, education should correspond to these [developmental] stages, so that instead of dividing the schools into nursery, primary...