"Firstly that his data are either unrepresentative or unreliable. Secondly that he takes evidence out of context, confuses prescription with practice, and uses atypical examples. Thirdly, that he implicitly denies the immutability of the special needs of children, for food, clothing, shelter, affection and conversation. Fourthly, that he puts undue emphasis on the work of moralists and educationalists while saying little of economic and political factors."