I think the difficulty lies in the immeasurable vanity of the human adult, particularly the pedagogical adult,… which does not permit him to recognize as good any tendency in children to fly in the face of his conceptions of a correct human being; to recognize that may be here is something highly desirable, to be encourage, rather than destroyed as pernicious…. [Y]our teacher has usually well-defined conceptions of what men and women have to be. And if a boy is too lively, too noisy, too restless, too curious, to suit the concept, he must be trimmed and subdued.