The ancient saying, "There is nothing in the intellect which was not first in some way in the senses," and senses being explorers of the world, opens the way to knowledge.

Discipline must come through liberty. . . . We do not consider an individual disciplined only when he has been rendered as artificially silent as a mute and as immovable as a paralytic. He is an individual annihilated, not disciplined.

The senses, being the explorers of the world, open the way to knowledge.

Education today, in this particular social period, is assuming truly unlimited importance. And the increased emphasis on its practical value can be summed up in one sentence: education is the best weapon for peace.

A child's character develops in accordance with the obstacles he has encountered... or the freedom favoring his development that he has enjoyed.

The essence of independence is to be able to do something for one’s self. Adults work to finish a task, but the child works in order to grow, and is working to create the adult, the person that is to be. Such experience is not just play... it is work he must do in order to grow up.

Mental development must be connected with movement and be dependent on it. It is vital that educational theory and practice should be informed by that idea.