The Metaphysics of the present day require also, a more accurate attention to the Theory of Grammar than has hitherto been paid by writers on the subject. Perhaps I do not assert too much in saying that we have had no grammarians worth notice, none who have thrown light on the principles of Grammar, but Locke and Horne Tooke. What dreadful confusion has arisen from treating words denoting what are called abstract ideas, as if they were the exponents of real individual existence? Whereas they are merely signs of artificial classification without any individual archetype. For instance in relation to the present subject, what volumes of laboured and learned trifling have been written on the _Will_, the _Judgment_, the _Understanding_ and the other faculties as they are called, of the soul! Yet nothing is more certain than that the will, the judgment, the understanding, &c. have no existence: they are words only, the counters employed in reasoning, convenient signs of arrangement, like the _plus_ the _minus_ and the _unknown quantity_ in Algebra, but no more. The time however is approaching, when Metaphysics will take rank among the Sciences that lay claim, if not to absolute demonstration, yet to an approximation to certainty sufficient for all the purposes of ethical reasoning, and all the practical duties of human life. _ERRATA._ PAGE, LINE. 23 10 from the top, For deliverery, read delivery. 84 14 -- -- ” Actes, ” Artes ” ” -- -- ” _pecsinit_, ” _nec sinit_. 90 bottom line, ” No. 6, ” No. 4. 160 2 -- -- ” Bur, ” But. 172 3 -- -- ” Biancount, ” Liancourt. 188 1 -- -- ” determing, ” determining. ” 8 -- -- ” he ” her. 214 1 -- -- For wall, read well. 218 3 from the bottom ” immorality, ” immortality. 229 2 -- -- ” 1679, ” 1767. 269 3 -- -- ” fort, ” forte. 304 8 from the bottom after, the Author, ” Dr. Coward. ” 1 from the top, ” predomininates, ” predominates. 333 7 from the top of the note for disc, ” dire. 357 12 from the top For is, ” it. Transcriber Notes Obvious punctuation errors and ommissions have been corrected. The errata have been corrected, except for the one listed as on page 357, which does not exist. Page 4 “My mother dying in in” changed to “My mother dying in” Page 23 “my deliverery” changed to “my delivery” Page 25 “that neighbourghood” changed to “that neighbourhood” Page 44 “English grammer” changed to “English grammar” Page 45 “justly prefered” changed to “justly preferred” Page 58 “occured to me” changed to “occurred to me” Page 77 “well knowh” changed to “well known”