The problem of which category to begin with raises some questions. It is arguable that the rhetoric of any piece is dependent upon its total intention, and that consequently no single sentence can be appraised apart from the tendency of the whole discourse. Our position does not deny that, since we are assuming merely that within the greater effect there are lesser effects, cooperating well or ill. Having accepted that limitation, it seems permissible for us to begin with the largest unit of grammar, which is the sentence. We shall take up first the sentence as such and then discriminate between formal types of sentences.

Because a sentence form exists in most if not all languages, there is some ground to suppose that it reflects a necessary operation of the mind, and this means not simply of the mind as psychologically constituted but also as logically constrained.

It is evident that when the mind frames a sentence, it performs the basic intellectual operation of analysis and re-synthesis. In this complete operation the mind is taking two or more classes and uniting them at least to the extent at which they share in a formal unity. The unity itself, built up through many such associations, comes to have an existence all its own, as we shall see. It is the repeated congruence in experience or in the imagination of such classes as “sun-heat,” “snow-cold,” which establishes the pattern, but our point is that the pattern once established can become disciplinary in itself and compel us to look for meaning within the formal unity it imposes. So it is natural for us to perceive through a primitive analysis the compresence of sun and hot weather, and to combine these into the unity “the sun is hot”; but the articulation represented by this joining now becomes a thing in itself, which can be grasped before the meaning of its component parts is evident. Accordingly, although sentences are supposed to grow out of meanings, we can have sentences before meanings are apparent, and this is indeed the central point of our rhetoric of grammar. When we thus grasp the scope of the pattern before we interpret the meaning of the components, we are being affected by grammatical system.

I should like to put this principle to a supreme sort of test by using a few lines of highly modern verse. In Allen Tate’s poem “The Subway” we find the following:

I am become geometries, and glut

Expansions like a blind astronomer

Dazed, while the wordless heavens bulge and reel

In the cold reverie of an idiot.

I do not propose to interpret this further than to say that the features present of word classification and word position cause us to look for meaning along certain lines. It seems highly probable that we shall have to exercise much imagination to fit our classes together with meaning as they are fitted by formal classification and sentence order (“I am become geometries”); yet it remains true that we take in the first line as a formal predication; and I do not think that this formal character could ever be separated entirely from the substance in an interpretation. Once we gain admission of that point with regard to a sentence, some rhetorical status for grammar has been definitely secured.

In total rhetorical effect the sentence seems to be peculiarly “the thing said,” whereas all other elements are “the things named.” And accordingly the right to utter a sentence is one of the very greatest liberties; and we are entitled to little wonder that freedom of utterance should be, in every society, one of the most contentious and ill-defined rights. The liberty to impose this formal unity is a liberty to handle the world, to remake it, if only a little, and to hand it to others in a shape which may influence their actions. It is interesting to speculate whether the Greeks did not, for this very reason, describe the man clever at speech as δεινός, an epithet meaning, in addition to “clever,” “fearful” and “terrible.” The sentence through its office of assertion is a force adding itself to the forces of the world, and therefore the man clever with his sentences—which is to say with his combinations—was regarded with that uneasiness which we feel in the presence of power. The changes wrought by sentences are changes in the world rather than in the physical earth, but it is to be remembered that changes in the world bring about changes in the earth. Thus this practice of yoking together classes of the world, of saying “Charles is King” or “My country is God’s country” is a unique rhetorical fact which we have to take into account, although it stands somewhat prior to our main discussion.