Imagination does not become great until human beings, given the courage and the strength, use it to create.

Children are human beings to whom respect is due, superior to us by reason of their innocence and of the greater possibilities of their future.

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.

There must be provision for the child to have contact with nature; to understand and appreciate the order, the harmony and the beauty in nature.

An adult who does not understand that a child needs to use his hands and does not recognize this as the first manifestation of an instinct for work can be an obstacle to the child's development

If children are allowed free development and given occupation to correspond with their unfolding minds their natural goodness will shine forth.

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