Mind, is an abstract term for all the phenomena of intelligence; and in order to describe them, they have usually been denominated powers, or faculties of the mind: we therefore commonly speak concerning the mind, as of an existence endowed with these properties.[8] It has been already confessed, that we are at present uninformed, and in all probability shall remain ignorant of the nature and operation of our intellectual powers: at least, we shall never be able to comprehend the manner in which we perceive the objects that surround us, nor to explain how we recollect them when they are absent; yet under this acknowledged inability we have framed a language expressive of these powers and operations. This language therefore cannot be the type of such processes, as their nature and operation are unknown. The different terms that have been employed, have originated from the numerous hypotheses, which have prevailed on this subject: but so long as a perfect agreement subsists, concerning the meaning of these terms, it is of little importance; for as we have no knowledge of the actual processes, whereby we perceive, remember, or exert our will, the expressions we employ cannot be explanatory. The language of mind, therefore, is not peculiar, not derived as the nomenclature of modern chemistry, in which names are impregnated with the elements of their composition; but figurative or metaphorical, the vehicle of conjecture, and the ornament of hypothesis. The truth of these remarks, would be best illustrated by an enumeration and analysis of the terms, which have been applied, to designate the powers and operations of the human intellect. Were we now to occupy ourselves, in the construction of a more appropriate language, to designate and explain the phenomena of mind; we should, from our ignorance, be equally incompetent with those who have preceded us. Let the terms therefore remain, but endeavour to afford them a fixed and definite meaning, and suffer them to be so far analysed, as to detect their composition, and discover the reasons which imposed them. In this endeavour there will, however, be found considerable difficulty; especially as the minds of men are not yet agreed respecting the process, by which it is to be performed.