In a series of adjectives that precede their noun, a comma is placed after each except the last; there usage omits the point. "A beautiful, tall, willowy, sprightly girl." "A quick, brilliant, studious, learned man."[26]
A comma is placed between short members of compound sentences, connected by and, but, for, nor, or, because, whereas, that expressing purpose (so that, in order that), and other conjunctions. "Be virtuous, that you may be respected." "Love not sleep, lest you come to poverty." "Man proposes, but God disposes."
A comma must not be placed before that except when it is equivalent to in order that. "He says that he will be here."
A comma must not be placed before and when it connects two words only. "Time and tide wait for no man." "A rich and prosperous people." "Plain and honest truth wants no artificial covering."
A comma is sometimes necessary to prevent ambiguity. "He who pursues pleasure only defeats the object of his creation." Without a comma before or after only, the meaning of this sentence is doubtful.
The following sentences present some miscellaneous examples of the use of the comma by writers on punctuation: "Industry, as well as genius, is essential to the production of great works." "Prosperity is secured to a state, not by the acquisition of territory or riches, but by the encouragement of industry." "Your manners are affable, and, for the most part, pleasing."[27]
"However fairly a bad man may appear to act, we distrust him." "Why, this is rank injustice." "Well, follow the dictates of your inclination." "The comma may be omitted in the case of too, also, therefore, and perhaps, when introduced so as not to interfere with the harmonious flow of the period; and, particularly, when the sentence is short."[28] "Robert Horton, M. D., F. R. S." "To those who labor, sleep is doubly pleasant"; "Sleep is doubly pleasant to those who labor." "Those who persevere, succeed." "To be overlooked, slighted, and neglected; to be misunderstood, misrepresented, and slandered; to be trampled under foot by the envious, the ignorant, and the vile; to be crushed by foes, and to be distrusted and betrayed even by friends—such is too often the fate of genius." "She is tall, though not so handsome as her sister." "Verily, verily, I say unto you." "Whatever is, is right." "What is foreordained to be, will be." "The Emperor Augustus was a patron of the fine arts." "Augustus, the Emperor, was a patron of the fine arts." "United, we stand; divided, we fall." "God said, Let there be light." "July 21, 1881." "President Garfield was shot, Saturday morning, July 2, 1881; he died, Monday night, Sept. 19, 1881." "I am, sir, very respectfully, your obedient servant, John Jones." "New York, August, 1881." "Room 20, Equitable Building, Broadway, New York."
"When you are in doubt as to the propriety of inserting commas, omit them; it is better to have too few than too many."—Quackenbos.
The Semicolon.—Reasons are preceded by semicolons; "Economy is no disgrace; for it is better to live on a little than to outlive a great deal." Clauses in opposition are separated by a semicolon when the second is introduced by an adversative: "Straws swim at the surface; but pearls lie at the bottom"; "Lying lips are an abomination to the Lord; but they that deal truly are his delight." Without the adversative, the colon is to be preferred: "Prosperity showeth vice: adversity, virtue." The great divisions of a sentence must be pointed with a semicolon when the minor divisions are pointed with commas: "Mirth should be the embroidery of conversation, not the web; and wit the ornament of the mind, not the furniture." The things enumerated must be separated by semicolons, when the enunciation of particulars is preceded by a colon: "The value of a maxim depends on four things: the correctness of the principle it embodies; the subject to which it relates; the extent of its application; and the ease with which it may be practically carried out." When as introduces an example, it is preceded by a semicolon. When several successive clauses have a common connection with a preceding or following clause, they are separated by semicolons; as, "Children, as they gamboled on the beach; reapers, as they gathered the harvest; mowers, as they rested from using the scythe; mothers, as they busied themselves about the household—were victims to an enemy, who disappeared the moment a blow was struck." "Reason as we may, it is impossible not to read in such a fate much that we know not how to interpret; much of provocation to cruel deeds and deep resentment; much of apology for wrong and perfidy; much of doubt and misgiving as to the past; much of painful recollections; much of dark foreboding." "Philosophers assert that Nature is unlimited; that her treasures are endless; that the increase of knowledge will never cease."
The Colon.—This point is less used now than formerly: its place is supplied by the period, the semicolon, or the dash; and sometimes, even by the comma. The colon is used very differently by different writers. "He was heard to say, 'I have done with this world.'" Some writers would put a colon, some a comma, after say. "When the quoted passage is brought in without any introductory word, if short," says Quackenbos, "it is generally preceded by a comma; if long, by a colon; as, 'A simpleton, meeting a philosopher, asked him, "What affords wise men the greatest pleasure?" Turning on his heel, the sage replied, "To get rid of fools."'"