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.
It is the city that is wrong, and its creations can never be right; they may be improved; they can never be what they should.... Until the whole atrocious system of herding working people in close-built cities, by way of making them serviceable cogwheels in the capitalistic machine for grinding out rent and profit, comes to an end, the physical education of children will remain at best a pathetic compromise.