At this period we possess abundant facilities for the acquirement of valuable knowledge: under this system, the mental faculties have been directed to their proper objects, and the time consumed in teaching has been considerably abbreviated. This abridgement of the usual course of education has conduced to the neglect of that classical learning, which required a painful and enduring attention, even for many years, to two languages that have ceased to be spoken, and are only addressed to the eye in written character. It is in no manner intended to under-rate the value of classical literature, the constituent of a scholar, and the passport and ornament of a gentleman; but to introduce a very probable opinion, that few of those who have devoted many of the most productive years of their existence to the Greek and Latin writers, ever attain a critical knowledge of those tongues: and that the substance of morals, wisdom, and even the elegant turns of expression, may be more certainly conveyed through the medium of the best translations, which we now possess, and the performance of which has occupied a large portion of the time of accomplished scholars. This conversion of talent to that which is useful, and productive of emolument, has given a more energetic impulse to the mind, and accelerated that march of which we now so justly boast: but it cannot be denied, that in the rapidity of our advancement, and flushed with the ardent hope of arriving at our destination, we have bestowed but little notice on the machinery that urged us forwards, or contemplated the scenery through which we passed. Most persons concur that the human mind is the noblest subject of investigation; but few will be at the trouble of undertaking its analysis. With the multitude there is neither leisure nor inclination, and the doctrines that have been dictated concerning our intellectual faculties and their operations, have tended rather to stifle than to promote inquiry. It is therefore unnecessary to enumerate the catalogue of illustrious names whose contradictory systems have created suspicion and distaste in the student. The science that has been improperly termed Metaphysics, ought to be considered a branch of human physiology, not abstracted from, but in this state of existence, connected with the phenomena of life. The citations on the reverse of the Title-page, to which many more might have been added, clearly shew that the doctrine of words being the elements of Thought, did not originate from my own conjecture or inference, and, consequently, that the endeavour to investigate its truth has been the sole object of my research; under the persuasion that, if ideas were inadequate, words only remained to afford the solution of this important process. The necessary connexion of thought with the construction of a perspicuous sentence, has not, to my knowledge, been previously noticed.