"We do not develop only at university, but we begin our mental growth at birth and pursue it with the greatest intensity during the first three years of life. To this period, more than to any other, it is imperative to give active care … If we follow these rules, … we will see in the children the builders of our own minds …who labour indefatigably in joy and happiness, at the work of constructing the greatest marvel of the Universe, the human beings." Montessori
