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.
Maria MontessoriThe observation of the way in which the children pass from the first disordered movements to those which are spontaneous and ordered -- this is the book of the teacher; this is the book which must inspire her actions . . .
Maria Montessori