Movement, or physical activity, is thus an essential factor in intellectual growth, which depends upon the impressions received from outside. Through movement we come in contact with external reality, and it is through these contacts that we eventually acquire even abstract ideas.

No one can be free unless he is independent.

In nature nothing creates itself and nothing destroys itself.

This then is the first duty of an educator: to stir up life but leave it free to develop.

The child should live in an environment of beauty.

The real preparation for education is a study of one's self. The training of the teacher...is something far more than a learning of ideas. It includes the training of character; it is a preparation of the spirit.

At about a year and a half, the child discovers another fact, and that is that each thing has its own name.