Ambrose Bierce was a good writer, but perhaps more important to him than the ultimate perceived quality of his writing was the pride he took in what he would call its precision. This quality he attempted to promote with a short usage volume entitled “Write It Right: A Little Blacklist of Literary Faults.”
Precision, he writes in the introduction, “is attained by choice of the word that accurately and adequately expresses what the writer has in mind, and by exclusion of that which either denotes or connotes something else. As Quintilian puts it, the writer should write so that his reader not only may, but must, understand.”
Thus, “capacity” should not be used when “ability” is meant, nor “continual” for “continuous,” and so on. The goal is not just successful communication, for which purpose even nonsense words will serve (and often do), but removing any possibility of misconstrual. It is worth noting that it is strictly for “serious discourse” such as news writing and letters that he advises, not poetry or other creative prose, in which creative or ambiguous usage is not discouraged (here, at least).
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