The Two Main Classes of Definitions

Two main classes of definition exist: first, the rigidly logical, scientific kind such as is found in dictionaries, textbooks, and other such writings which are not concerned with emotional values; and second, the less rigid, more expanded, more informal kind which aims to please as well as to instruct, and which is found in essays and all forms of writing with a strong human appeal. The two kinds are alike in the presence of both genus and differentia; they differ chiefly in the presence, in the less formal, of the qualities of pleasingness and stimulation as opposed to the quality, in the formal, of scientific impersonality, cold intellectuality. For example, the Standard Dictionary defines a correspondent as 'one who communicates by means of letters; specifically one who sends regular communications from a distant place to a newspaper or a business house." The author of the volume entitled Famous War Correspondents 1 defines, with much the same fundamental ideas, if not indeed exactly the same, a war correspondent as follows:

66

The war correspondent is a newspaper man assigned to cover a campaign. He goes into the field with the army, expecting to send his reports from that witching region known as "the front." He is a special correspondent commissioned to collect intelligence and transmit it from the camp and the battle ground. A non-combatant, he mingles freely with men whose business it is to fight. He may be ten thousand miles from the home office, but he finds competition as keen as ever it is in Fleet Street or Newspaper Row. He is engaged in the most dramatic department of a profession whose infinite variety is equalled only by its fascination. If he becomes a professional rather than an occasional correspondent, wandering will be his business and adventure his daily fare. Mr. A. G. Hales is of the opinion that the newspaper man who is chosen as a war correspondent has won the Victoria Cross of journalism.

1 F. L. Bullard: Famous War Correspondents. By courtesy of the publishers, Little, Brown & Co., Boston. Copyright, 1914.

For the making of a first-rate war correspondent there are required all the qualifications of a capable reporter in any other branch of the profession, and others besides. Perhaps it is true that the regular hack work of the ordinary newspaper man is the best training for the scribe of war. The men who had reported fires and train wrecks in American cities proved themselves able to describe vigorously and clearly the campaign in Cuba. William Howard Russell had been doing a great variety of descriptive writing before he was sent to the Crimea. The prime requisites for a satisfactory war correspondent are those fundamental to success in kind of newspaper work, the ability to see straight, to write vividly and accurately, and to get a story on the wire.

any

Occasionally a brilliant workman appears from nowhere, the happy possessor of an almost uncanny intuition of movements and purposes. Such a man was Archibald Forbes. But Forbes, no less than the average special, had to have the physical capacity to march with the private soldier, to ride a hundred miles at a clip at top speed over rough country, to sleep in the open, to stand the heat of the desert and the cold of the mountain height, to endure hunger and thirst and all the deprivations of a hard campaign. Every correspondent at times must keep going until his strength is utterly spent. He must have the tenacity which does not yield to exhaustion until his messages are written and on the way to his paper. When the soldier ceases fighting, the correspondent's work is only begun. He needs also to have a degree of familiarity with the affairs of the present and the history of the past which will secure him the respect of the officers with whom he may associate. Along with the courage of the scout he should possess the suavity and tact of the diplomat, for he will have to get along with men of all types, and occasionally, indeed, his own influence may overlap into the field of international diplomacy. British correspondents, having covered many wars, small and great, since 1870, usually are acquainted with several languages, and often have acquired a knowledge of the technicalities of military science.

Of the two kinds of definition formal and informal you will more often have occasion to write the second. You must guard against the danger, in such writing, of allowing

the interest to cloud the truth, of being led into inaccurate partial statements by your desire to please. At the root of every good definition is still the accurate statement of genus and differentia. It is chiefly of the second kind that we shall treat here. If you can write a definition that is pleasing and stimulating and also accurate, you can always boil it down into the more bald formal statement such as the dictionary offers. Whatever powers of grace or neatness in expression you possess, whatever powers of saying things in a pleasing manner, it is your privilege to employ in the writing of definitions.

General Cautions

For the sake of clearness and general effectiveness a few cautions need to be made. In the first place, be sure to exclude everything from your definition that does not properly belong in it. For example, if you define the aeroplane as a machine that journeys through the air under its own power, you include dirigible balloons, which are not aeroplanes. You must introduce both the characteristics of being heavier than air and of having a plane or planes before your definition can stand. You will make this exclusion by choosing both class and differentia with the greatest care.

In the second place, include everything that does properly belong in the definition. If you define a bridge as a roadway over a stream, either resting on piers or hanging on cables strung over towers, you exclude pontoon bridges certainly, and all bridges across dry chasms, if not other kinds. Not until you include all varieties of things crossed and all the methods of support and the various materials used will your definition be sound and complete. This does not mean that you will have to make an endless list of all possible forms, but that you will make a comprehensive statement which will allow of being distributed over all the different forms and kinds of bridges.

In the third place, use simple and familiar diction. Since the first purpose of a definition is to explain, one that is obscure or difficult makes confusion worse confounded. The famous or notorious definition which Dr. Johnson made of so simple a thing as network, "anything reticulated or decussated at equal distances with interstices between the intersections," is worse than useless because it positively throws dust upon a comparatively easy matter to perceive - unless the reader take time out for meditation. Remember that the Gettysburg Address and many of Shakespeare's sonnets are largely in words of one syllable. And then do not be afraid that you will be understood; the fire is always presumably somewhat more uncomfortable than the frying-pan.

In the fourth place, do not use the term that you are defining, or any derivative of it. When college freshmen, in mortal combat with a quiz question, define a description as something that describes, they use words that profit them nothing. That a cow is a cow is fairly obvious. The temptation to make this mistake, which, in the intellectual world, occupies the relative space of the saucy old advice, “Chase yourself round the block!" occurs usually when a long definition is being written, in which the writer forgets to keep the horizon clear, and finally falls into the formula x is x. To avoid yielding to such temptation, you will do well, after a definition is complete, to phrase it in a single sentence which shall include both differentia and genus, and in which you can easily discover the evil formula x is x. Bardolph, in Shakespeare's King Henry IV, yields to the temptation

for which we are glad as to humor but not made wise as to meaning - when Shallow puts him to the test:

Shallow: Better accommodated! it is good; yea, indeed, it is: good phrases are surely, and ever were, very commendable. Accommodated! it comes of accommodo: very good; a good phrase.

Bardolph: Pardon me, sir; I have heard the word. Phrase call

you it? by this good day, I know not the phrase; but I will maintain the word with my sword to be a soldier-like word, and a word of exceeding good command, by heaven. Accommodated; that is, when a man is, as they say, accommodated; or when a man is, being, whereby 'a may be thought to be accommodated; which is an excellent thing.

In the fifth place, be sure that you define, and do not merely "talk about" the subject. Any amount of however interesting comment that fails to accomplish the two necessities of definition, statement of the genus and the differentia, is futile; it is not definition. This temptation, like the former one, will be overcome if you take the trouble to phrase the actual material of your definition in one sentence that really includes both genus and differentia. As a minor suggestion, do not begin your definition with the words, "X is when" or "X is where," unless you are defining either a unit of time or a place and even then you will do well to avoid these too frequently used phrases.

Finally, do not make your definition too mechanical, too much lacking in real life. Thinking of how you must deal with genus and differentia, you are liable to be overwhelmed with the grim duty of being logical, and to forget that you should also be human, that people read definitions, as other kinds of writing, in the double hope of information and pleasure. No real antagonism exists between logic of the strictest kind and pleasurable presentation, as is proved by the examples quoted during the course of this chapter and at the end. While you remember your subject, remember also your reader; then you will be unlikely to make a dull definition.

Methods of Defining

You may use various methods of defining. Sometimes you will choose only one, and sometimes you will combine.