Belief in the ability of the afflicted to designate accurately their afflicters, was then prevalent; but though probably born of facts in human experience, and in itself fundamentally correct, it was indiscreetly and harmfully applied.
"Witchcraft of New England Explained by Modern Spiritualism"
Allen Putnam
A second gripping dread-one all too common with harmfully taught, southern girls-was fear of negroes; a horrible, indefinite, haunting apprehension chilled her veins, not only when associated with them, but even more viciously when she was alone with her thoughts.
"Our Nervous Friends Illustrating the Mastery of Nervousness"
Robert S. Carroll
We may, however, note some ways in which school practices tend to interrupt consecutiveness of language and thereby interfere harmfully with systematic reflection.
"How We Think"
John Dewey