Free choice is one of the highest of all the mental processes.

Play is the work of the child.

The child is the spiritual builder of mankind, and obstacles to his free development are the stones in the wall by which the soul of man has become imprisoned.

An interesting piece of work, freely chosen, which has the virtue of inducing concentration rather than fatigue, adds to the child's energies and mental capacities, and leads him to self-mastery.

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.

The greatness of the human personality begins at the hour of birth. From this almost mystic affirmation there comes what may seem a strange conclusion: that education must start from birth.

The teacher's task is not to talk, but to prepare and arrange a series of motives for cultural activity in a special environment made for the child.