The educational reformers are the men above all others who stimulate us to think about education. Every one of these was an extremist, and erred in his judgment as to the value of the methods which prevailed in his time, and also overestimated the effects of the new education that he proposed in the place of the old. But thought begins with negations, and originality shows itself first not in creating something new, but in removing the fettering limitations of its existing environment.