The teacher's task is not a small easy one! She has to prepare a huge amount of knowledge to satisfy the child's mental hunger. She is not like the ordinary teacher, limited by a syllabus. The needs of the child are clearly more difficult to answer.

In nature nothing creates itself and nothing destroys itself.

Growth and psychic development are therefore guided by: the absorbent mind, the nebulae and the sensitive periods, with their respective mechanisms. It is these that are hereditary and characteristic of the human species. But the promise they hold can only be fulfilled through the experience of free activity conducted in the environment.

The child’s progress does not depend only on his age, but also on being free to look around him.

At birth, the child leaves a person - his mother's womb - and this makes him independent of her bodily functions. The baby is next endowed with an urge, or need, to face the out world and to absorb it. We might say that he is born with 'the psychology of world conquest.' By absorbing what he finds about him, he forms his own personality.

The human hand allows the mind to reveal itself.

With younger children the greatest reward is to be able to pass on to a new stage in each subject. It is a punishment to a young child not to be allowed to use the apparatus but to sit still and do nothing.