It is deeply satisfying to all mankind that many ailments, once dangerous, mysterious and worrying, now offer the therapist of today wonderful opportunities for the exercise of his skill; but with recalcitrant distress, one might almost say recalcitrant patients, treatments tend, as ever, to become desperate and to be used increasingly in the service of hatred as well as love; to deaden, placate and silence, as well as to vivify. (Main, 1957, in The Ailment)