All human victories, all human progress, stand upon the inner force.

At a given moment a child becomes interested in a piece of work, showing it by the expression of his face, by his intense attention, by his perseverance in the same exercise. That child has set foot upon the road leading to discipline.

The real preparation for education is the study of one's self.

The child's conquests of independence are the basic steps in what is called his 'natural development'.

The most important period of life is not the age of university studies, but the first one, the period from birth to the age of six.

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

Teach by teaching, not by correcting