Every great cause is born from repeated failures and from imperfect achievements.

Adults look upon a child as something empty that is to be filled through their own efforts, as something inert and helpless for which they must do everything, as something lacking an inner guide and in constant need of inner direction. . . . An adult who acts in this way, even though he may be convinced that he is filled with zeal, love, and a spirit of sacrifice on behalf of his child, unconsciously suppresses the development of the child's own personality.

Play is the work of the child.

Teach by teaching, not by correcting

We cannot know the consequences of suppressing a child's spontaneity when he is just beginning to be active. We may even suffocate life itself. That humanity which is revealed in all its intellectual splendor during the sweet and tender age of childhood should be respected with a kind of religious veneration. It is like the sun which appears at dawn or a flower just beginning to bloom. Education cannot be effective unless it helps a child to open up himself to life.

The child can only develop fully by means of experience in his environment. We call such experience 'work'.

It is not in human nature for all men to tread the same path of development, as animals do of a single species.