Every word in the language must be included in some class, and nothing is gained by making the classes larger and less numerous.

In all the artificial arrangements of science, distinctions are to be made according to the differences in things; and the simple question here is, what differences among words shall be at first regarded.

To overlook, in our primary division, the difference between a verb and a participle, is merely to reserve for a subdivision, or subsequent explanation, a species of words which most grammarians have recognized as a distinct sort in their original classification.
10.

It should be observed that the early period of grammatical science was far remote from the days in which _English_ grammar originated.

Many things which we now teach and defend as grammar, were taught and defended two thousand years ago, by the philosophers of Greece and Rome.