To give a child liberty is not to abandon him to himself.

First the education of the senses, then the education of the intellect.

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.

Education demands, then, only this: the utilization of the inner powers of the child for his own instruction.

The child, making use of all that he finds around him, shapes himself for the future.

Only practical work and experience lead the young to maturity.

Education, as conceived today, is something separated both from biological and social life.