Learning to speak, therefore, and the power it brings of intelligent converse with others, is a most impressive further step along the path of independence ... Learning to walk is especially significant, not only because it is supremely complex, but because it is done in the first year of life.
Maria MontessoriAt 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.
Maria Montessori