The prize and punishments are incentives toward unnatural or forced effort, and, therefore we certainly cannot speak of the natural development of the child in connection with them.

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

A child's work is to create the person she/he will become.

No one can be free unless he is independent.

There is in every child a painstaking teacher so skillful that he obtains identical results in all children in all parts of the world. The only language men ever speak perfectly is the one they learn in babyhood, when no one teaches them anything.

The child is an enigma… He has the highest potentialities, but we do not know what he will be.

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.