This is Maria Montessori's grave, located in the small seaside village of Noordwijk, Netherlands, where she passed away. Her tombstone reads ~"I beg the dear, all-powerful children to join me in creating peace in man and in the world."
“The child who has never learned to work by himself, to set goals for his own acts, or to be the master of his own force of will is recognizable in the adult who lets others guide him and feels a constant need for the approval of others.” Maria Montessori
“[F]rom the depths of the child’s soul we can draw something new, something useful for all of us, some light that would clarify the obscure causes of human behavior.” Maria Montessori, The Formation of Man
“The child seeks for independence by means of work; an independence of body and mind. Little he cares about the knowledge of others; he wants to acquire a knowledge of his own, to have experience of the world, and to perceive it by his own unaided efforts.” Maria Montessori, The Absorbent Mind
"To have found one-fourth of the answer to his own question by his own effort is of more value to the child than to learn it all, half-understood, from another." Friedrich Fröbel, 19th-century educator
“It often happens that children who are more or less at the same stage in a subject will spontaneously form a group of two, three, or four, and work together for an hour or so, perhaps the whole morning.” E.M. Standing, biographer of Maria Montessori