The Elements of Style/Principles

9. Make the paragraph the unit of composition: one paragraph to each topic.
If the subject on which you are writing is of slight extent, or if you intend to treat it very briefly, there may be no need of subdividing it into topics. Thus a brief description, a brief summary of a literary work, a brief account of a single incident, a narrative merely outlining an action, the setting forth of a single idea, any one of these is best written in a single paragraph. After the paragraph has been written, it should be examined to see whether subdivision will not improve it.

Ordinarily, however, a subject requires subdivision into topics, each of which should be made the subject of a paragraph. The object of treating each topic in a paragraph by itself is, of course, to aid the reader. The beginning of each paragraph is a signal to him that a new step in the development of the subject has been reached.

The extent of subdivision will vary with the length of the composition. For example, a short notice of a book or poem might consist of a single paragraph. One slightly longer might consist of two paragraphs:

 Account of the work. Critical discussion. 

A report on a poem, written for a class in literature, might consist of seven paragraphs:

 Facts of composition and publication. Kind of poem; metrical form. Subject. Treatment of subject. For what chiefly remarkable.</li> <li>Wherein characteristic of the writer.</li> <li>Relationship to other works.</li> </ol>

The contents of paragraphs C and D would vary with the poem. Usually, paragraph C would indicate the actual or imagined circumstances of the poem (the situation), if these call for explanation, and would then state the subject and outline its development. If the poem is a narrative in the third person throughout, paragraph C need contain no more than a concise summary of the action. Paragraph D would indicate the leading ideas and show how they are made prominent, or would indicate what points in the narrative are chiefly emphasized.

A novel might be discussed under the heads:

<ol style="list-style-type:upper-alpha"> <li>Setting.</li> <li>Plot.</li> <li>Characters.</li> <li>Purpose.</li> </ol>

A historical event might be discussed under the heads:

<ol style="list-style-type:upper-alpha"> <li>What led up to the event.</li> <li>Account of the event.</li> <li>What the event led up to.</li> </ol>

In treating either of these last two subjects, the writer would probably find it necessary to subdivide one or more of the topics here given.

As a rule, single sentences should not be written or printed as paragraphs. An exception may be made of sentences of transition, indicating the relation between the parts of an exposition or argument.

In dialogue, each speech, even if only a single word, is a paragraph by itself; that is, a new paragraph begins with each change of speaker. The application of this rule, when dialogue and narrative are combined, is best learned from examples in well-printed works of fiction.

10. As a rule, begin each paragraph with a topic sentence; end it in conformity with the beginning.
Again, the object is to aid the reader. The practice here recommended enables him to discover the purpose of each paragraph as he begins to read it, and to retain the purpose in mind as he ends it. For this reason, the most generally useful kind of paragraph, particularly in exposition and argument, is that in which

<ol style="list-style-type:upper-alpha"> <li>the topic sentence comes at or near the beginning;</li> <li>the succeeding sentences explain or establish or develop the statement made in the topic sentence; and</li> <li>the final sentence either emphasizes the thought of the topic sentence or states some important consequence.</li> </ol>

Ending with a digression, or with an unimportant detail, is particularly to be avoided.

If the paragraph forms part of a larger composition, its relation to what precedes, or its function as a part of the whole, may need to be expressed. This can sometimes be done by a mere word or phrase (again; therefore; for the same reason) in the topic sentence. Sometimes, however, it is expedient to precede the topic sentence by one or more sentences of introduction or transition. If more than one such sentence is required, it is generally better to set apart the transitional sentences as a separate paragraph.

According to the writer's purpose, he may, as indicated above, relate the body of the paragraph to the topic sentence in one or more of several different ways. He may make the meaning of the topic sentence clearer by restating it in other forms, by defining its terms, by denying the converse, by giving illustrations or specific instances; he may establish it by proofs; or he may develop it by showing its implications and consequences. In a long paragraph, he may carry out several of these processes.

In narration and description the paragraph sometimes begins with a concise, comprehensive statement serving to hold together the details that follow.

But this device, if too often used, would become a mannerism. More commonly the opening sentence simply indicates by its subject with what the paragraph is to be principally concerned.

The brief paragraphs of animated narrative, however, are often without even this semblance of a topic sentence. The break between them serves the purpose of a rhetorical pause, throwing into prominence some detail of the action.

11. Use the active voice.
The active voice is usually more direct and vigorous than the passive:

This is much better than

The latter sentence is less direct, less bold, and less concise. If the writer tries to make it more concise by omitting "by me,"

it becomes indefinite: is it the writer, or some person undisclosed, or the world at large, that will always remember this visit?

This rule does not, of course, mean that the writer should entirely discard the passive voice, which is frequently convenient and sometimes necessary.

The first would be the right form in a paragraph on the dramatists of the Restoration; the second, in a paragraph on the tastes of modern readers. The need of making a particular word the subject of the sentence will often, as in these examples, determine which voice is to be used.

The habitual use of the active voice, however, makes for forcible writing. This is true not only in narrative principally concerned with action, but in writing of any kind. Many a tame sentence of description or exposition can be made lively and emphatic by substituting a transitive in the active voice for some such perfunctory expression as there is, or could be heard.

As a rule, avoid making one passive depend directly upon another.

In both the examples above, before correction, the word properly related to the second passive is made the subject of the first.

A common fault is to use as the subject of a passive construction a noun which expresses the entire action, leaving to the verb no function beyond that of completing the sentence.

Compare the sentence, "The export of gold was prohibited," in which the predicate "was prohibited" expresses something not implied in "export."

12. Put statements in positive form.
Make definite assertions. Avoid tame, colorless, hesitating, non-committal language. Use the word not as a means of denial or in antithesis, never as a means of evasion.

The last example, before correction, is indefinite as well as negative. The corrected version, consequently, is simply a guess at the writer's intention.

All three examples show the weakness inherent in the word not. Consciously or unconsciously, the reader is dissatisfied with being told only what is not; he wishes to be told what is. Hence, as a rule, it is better to express a negative in positive form.

The antithesis of negative and positive is strong:

Negative words other than not are usually strong:

13. Omit needless words.
Vigorous writing is concise. A sentence should contain no unnecessary words, a paragraph no unnecessary sentences, for the same reason that a drawing should have no unnecessary lines and a machine no unnecessary parts. This requires not that the writer make all his sentences short, or that he avoid all detail and treat his subjects only in outline, but that every word tell.

Many expressions in common use violate this principle:

In especial the expression the fact that should be revised out of every sentence in which it occurs.

See also under case, character, nature, system in Chapter V.

Who is, which was, and the like are often superfluous.

As positive statement is more concise than negative, and the active voice more concise than the passive, many of the examples given under Rules 11 and 12 illustrate this rule as well.

A common violation of conciseness is the presentation of a single complex idea, step by step, in a series of sentences which might to advantage be combined into one.

14. Avoid a succession of loose sentences.
This rule refers especially to loose sentences of a particular type, those consisting of two co-ordinate clauses, the second introduced by a conjunction or relative. Although single sentences of this type may be unexceptionable (see under Rule 4), a series soon becomes monotonous and tedious.

An unskilful writer will sometimes construct a whole paragraph of sentences of this kind, using as connectives and, but, and less frequently, who, which, when, where, and while, these last in non-restrictive senses (see under Rule 3).

Apart from its triteness and emptiness, the paragraph above is bad because of the structure of its sentences, with their mechanical symmetry and sing-song. Contrast with them the sentences in the paragraphs quoted under Rule 10, or in any piece of good English prose, as the preface (Before the Curtain) to Vanity Fair.

If the writer finds that he has written a series of sentences of the type described, he should recast enough of them to remove the monotony, replacing them by simple sentences, by sentences of two clauses joined by a semicolon, by periodic sentences of two clauses, by sentences, loose or periodic, of three clauses—whichever best represent the real relations of the thought.

15. Express co-ordinate ideas in similar form.
This principle, that of parallel construction, requires that expressions of similar content and function should be outwardly similar. The likeness of form enables the reader to recognize more readily the likeness of content and function. Familiar instances from the Bible are the Ten Commandments, the Beatitudes, and the petitions of the Lord's Prayer.

The unskilful writer often violates this principle, from a mistaken belief that he should constantly vary the form of his expressions. It is true that in repeating a statement in order to emphasize it he may have need to vary its form. For illustration, see the paragraph from Stevenson quoted under Rule 10. But apart from this, he should follow the principle of parallel construction.

The left-hand version gives the impression that the writer is undecided or timid; he seems unable or afraid to choose one form of expression and hold to it. The right-hand version shows that the writer has at least made his choice and abided by it.

By this principle, an article or a preposition applying to all the members of a series must either be used only before the first term or else be repeated before each term.

Correlative expressions (both, and; not, but; not only, but also; either, or; first, second, third; and the like) should be followed by the same grammatical construction. Many violations of this rule can be corrected by rearranging the sentence.

See also the third example under Rule 12 and the last under Rule 13.

It may be asked, what if a writer needs to express a very large number of similar ideas, say twenty? Must he write twenty consecutive sentences of the same pattern? On closer examination he will probably find that the difficulty is imaginary, that his twenty ideas can be classified in groups, and that he need apply the principle only within each group. Otherwise he had best avoid the difficulty by putting his statements in the form of a table.

16. Keep related words together.
The position of the words in a sentence is the principal means of showing their relationship. The writer must therefore, so far as possible, bring together the words, and groups of words, that are related in thought, and keep apart those which are not so related.

The subject of a sentence and the principal verb should not, as a rule, be separated by a phrase or clause that can be transferred to the beginning.

The objection is that the interposed phrase or clause needlessly interrupts the natural order of the main clause. This objection, however, does not usually hold when the order is interrupted only by a relative clause or by an expression in apposition. Nor does it hold in periodic sentences in which the interruption is a deliberately used means of creating suspense (see examples under Rule 18).

The relative pronoun should come, as a rule, immediately after its antecedent.

If the antecedent consists of a group of words, the relative comes at the end of the group, unless this would cause ambiguity.

A noun in apposition may come between antecedent and relative, because in such a combination no real ambiguity can arise.

Modifiers should come, if possible next to the word they modify. If several expressions modify the same word, they should be so arranged that no wrong relation is suggested.

17. In summaries, keep to one tense.
In summarizing the action of a drama, the writer should always use the present tense. In summarizing a poem, story, or novel, he should preferably use the present, though he may use the past if he prefers. If the summary is in the present tense, antecedent action should be expressed by the perfect; if in the past, by the past perfect.

But whichever tense be used in the summary, a past tense in indirect discourse or in indirect question remains unchanged.

Apart from the exceptions noted, whichever tense the writer chooses, he should use throughout. Shifting from one tense to the other gives the appearance of uncertainty and irresolution (compare Rule 15).

In presenting the statements or the thought of some one else, as in summarizing an essay or reporting a speech, the writer should avoid intercalating such expressions as "he said," "he stated," "the speaker added," "the speaker then went on to say," "the author also thinks," or the like. He should indicate clearly at the outset, once for all, that what follows is summary, and then waste no words in repeating the notification.

In notebooks, in newspapers, in handbooks of literature, summaries of one kind or another may be indispensable, and for children in primary schools it is a useful exercise to retell a story in their own words. But in the criticism or interpretation of literature the writer should be careful to avoid dropping into summary. He may find it necessary to devote one or two sentences to indicating the subject, or the opening situation, of the work he is discussing; he may cite numerous details to illustrate its qualities. But he should aim to write an orderly discussion supported by evidence, not a summary with occasional comment. Similarly, if the scope of his discussion includes a number of works, he will as a rule do better not to take them up singly in chronological order, but to aim from the beginning at establishing general conclusions.

18. Place the emphatic words of a sentence at the end.
The proper place for the word, or group of words, which the writer desires to make most prominent is usually the end of the sentence.

The word or group of words entitled to this position of prominence is usually the logical predicate, that is, the new element in the sentence, as it is in the second example.

The effectiveness of the periodic sentence arises from the prominence which it gives to the main statement.

The other prominent position in the sentence is the beginning. Any element in the sentence, other than the subject, becomes emphatic when placed first.

A subject coming first in its sentence may be emphatic, but hardly by its position alone. In the sentence,

the emphasis upon kings arises largely from its meaning and from the context. To receive special emphasis, the subject of a sentence must take the position of the predicate.

The principle that the proper place for what is to be made most prominent is the end applies equally to the words of a sentence, to the sentences of a paragraph, and to the paragraphs of a composition.