" It is [the teacher's] business to be on the alert to see what attitudes and habitual tendencies are being created. In this direction he[sic] must, if he is an educator, be able to judge what attitudes are actually conducive to continued growth and what are detrimental. He must, in addition, have that sympathetic understanding of individuals as individuals which gives him an idea of what is actually going on in the minds of those who are learning. "

― John Dewey , Experience and Education