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.

The greatness of the human personality begins at the hour of birth.

Human dignity ... is derived from a sense of independence.

It is almost possible to say that there is a mathematical relationship between the beauty of his surroundings and the activity of the child; he will make discoveries rather more voluntarily in a gracious setting than in an ugly one.

There is no description, no image in any book that is capable of replacing the sight of real trees, and all of the life to be found around them in a real forest.

Do not offer the child the content of the mind, but the order for that content.

The child becomes a person through work.