no obscurity, the juxtaposition of the same word twice used in two senses is inelegant, e.g. (Bain), "He turned to the left and left the room."
I have known the following slovenly sentence misunderstood: "Our object is that, with the aid of practice, we may sometime arrive at the point where we think eloquence in its most praiseworthy form to lie." "To lie" has been supposed to mean "to deceive."
5. Be careful how you use "he," "it," "they," "these," &c. (For "which" see 8.) The ambiguity arising from the use of he applying to different persons is well known.
"He told his friend that if he did not feel better in half an hour he thought he had better return." See (6) for remedy.
Much ambiguity is also caused by excessive use of such phrases as in this way, of this sort, &c.
"God, foreseeing the disorders of human nature, has given us certain passions and affections which arise from, or whose objects are, these disorders. Of this sort are fear, resentment, compassion."
Repeat the noun: "Among these passions and affections are fear &c."
Two distinct uses of it may be noted. It, when referring to something that precedes, may be called "retrospective;" but when to something that follows, "prospective." In "Avoid indiscriminate charity: it is a crime," "it" is retrospective.1 In "It is a crime to give indiscriminately," "it" is prospective.
The prospective "it," if productive of ambiguity, can often be omitted by using the infinitive as a subject: "To give indiscriminately is a crime."
6. Report a speech in the First, not the Third Person, where necessary to avoid ambiguity. Speeches in the third person afford a particular, though very common case, of the general ambiguity mentioned in (5). Instead of "He told his friend that if he did not feel better &c," write "He said to his friend, "If I (or you) don't feel better &c."
6a. Sometimes, where the writer cannot know the exact words, or where the exact words are unimportant, or lengthy and uninteresting, the Third Person is preferable. Thus, where Essex is asking Sir Robert Cecil that Francis Bacon may be appointed Attorney-General, the dialogue is (as it almost always is in Lord Macaulay's writings) in the First Person, except where it becomes tedious and uninteresting so as to require condensation, and then it drops into the Third Person:
"Sir Robert had nothing to say but that he thought his own abilities equal to the place which he hoped to obtain, and that his father's long services deserved such a mark of gratitude from the Queen." ...
1 It should refer (1) either to the Noun immediately preceding, or (2) to some Noun superior to all intervening Nouns in emphasis. See (25).