In those books which are to prepare the learner to translate from one tongue into another, seldom is any thing else attempted.

In those also which profess to explain the right use of vernacular speech, must the same purpose be ever paramount, and the "original design" be kept in view.

But the grammarian may teach many things incidentally.

One cannot learn a language, without learning at the same time a great many opinions, facts, and principles, of some kind or other, which are necessarily embodied in it.

For all language proceeds from, and is addressed to, the understanding; and he that perceives not the meaning of what he reads, makes no acquisition even of the language itself.