The first idea that the child must acquire, in order to be actively disciplined, is that of the difference between good and evil; and the task of the educator lies in seeing that the child does not confound good with immobility and evil with activity, as
Source: The Montessori Method, ch. 5 (1912).
-- Maria Montessori, (Aug 31 1870-1952), Italian educator, reformer; She originated the Montessori method of education stressing development of initiative and freedom of the child.