Only through freedom and environmental experience is it practically possible for human development to occur.

The whole of mankind is one and only one, one race, one class and one society.

What is a scientist?... We give the name scientist to the type of man who has felt experiment to be a means guiding him to search out the deep truth of life, to lift a veil from its fascinating secrets, and who, in this pursuit, has felt arising within him a love for the mysteries of nature, so passionate as to annihilate the thought of himself.

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.

The role of education is to interest the child profoundly in an external activity to which he will give all his potential

It is necessary, then, to give the child the possibility of developing according to the laws of his nature, so that he can become strong, and, having become strong, can do even more than we dared hope for him.

Only practical work and experience lead the young to maturity.