Maria Montessori believed that in order for the world to become a more peaceful and more civilized society for people to live in, the new generations must be taught to live in harmony and their hidden potential must be developed to the fullest. She believed that the only way to do it was through education. However, there was a need for the old educational system to be reformed as it was too teacher-centered, so it would not be able to maximize the potential in each child. The traditional system also did not prepare the child for life in society as the activities did not teach the child to work in collaboration with others, neither did it teach the child important skills such as concentration, responsibility and perseverance. She felt that the teacher's job should be that of an observer; alert to the needs of the child and ready to react appropriately as "any form of education must be based on the personality of man". (Absorbent Mind, Chapter 1, p. 8) As such, there arises a 'new education' system which proves to be effective all around the world even till today.