OBS. 20.—Such, then, has ever been the usual construction of the English infinitive mood; and a wilder interpretation than that which supposes to an article, and says, “to write signifies the writing,” cannot possibly be put upon it. On this supposition, “I am going to write a letter,” is a pure Grecism; meaning, “I am going the writing a letter,” which is utter nonsense. And further, the infinitive in Greek and Latin, as well as in Saxon and English, is always in fact governed as a mood, rather than as a case, notwithstanding that the Greek article in any of its four different cases may, in some instances, be put before it; for even with an article before it, the Greek infinitive usually retains its regimen as a verb, and is therefore not “a substantive,” or noun. I am well aware that some learned critics, conceiving that the essence of the verb consists in predication, have plainly denied that the infinitive is a verb; and, because it may be made the subject of a finite verb, or may be governed by a verb or a preposition, have chosen to call it “a mere noun substantive.” Among these is the erudite Richard Johnson, who, with so much ability and lost labour, exposed, in his Commentaries, the errors and defects of Lily’s Grammar and others. This author adduces several reasons for his opinion; one of which is the following: “Thirdly, it is found to have a Preposition set before it, an other sure sign of a Substantive; as, ’Ille nihil praeter loqui, et ipsum maledice et maligne, didicit.’ Liv. l. 45, p. 888. [That is, “He learned nothing but to speak, and that slanderously and maliciously.”] ’At si quis sibi beneficium dat, nihil interest inter dare et accipere.’ Seneca, de Ben. l. 5, c. 10.” [That is, “If any one bestows a benefit on himself, there is no difference between give and take;” [407]—or, “between bestowing and receiving."]—See Johnson’s Gram. Com., p. 342. But I deny that a preposition is a “sure sign of a substantive.” (See Obs. 2d on the Prepositions, and also Obs. 1st on the List of Prepositions, in the tenth chapter of Etymology.) And if we appeal to philological authorities, to determine whether infinitives are nouns or verbs, there will certainly be found