"'Do give me a subject!' How often the weary school teacher hears that cry. Then a list of themes is suggested, gone over, considered, and, inmost instances, rejected, because the teacher can know but imperfectly what is in the pupil's mind. To suggest a subject in this way is like trying to discover the street on which a lost child lives, by naming over a number of streets until one strikes the little one's ear assounding familiar.
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