is to pass for a simple idea, because it has as good a right to this denomination as other complex ideas, which are usually classed as simple ones. It is thus that the inquiring mind seems to be always hovering on the brink of truth, but that timidity or indolence, or prejudice, which is both combined, makes us shrink back, unwilling to trust ourselves to the fathomless abyss. I have thus endeavoured to give some account of what I mean by the understanding, as the principle which is the foundation not only of judgment, reason, choice, and deliberate action, but is included in every idea of the mind, or conception even of sensible objects. I am aware that what I have said may be looked upon as rhapsody and extravagance by the strictest sect of those who are called philosophers. The understanding has been set aside as an awkward incumbrance, since it was conceived practicable to carry on the whole business of thought and reason by a succession of external images and sensible points. The fine network of the mind itself, the cords that bind and hold our scattered perceptions together, and form the means of communication between them, are dissolved and vanish before the clear light of modern metaphysics, as the gossamer is dissipated by the sun. The adepts in this system smile at the contradictions involved in the supposition of perceiving the relations between different things, and say that this implies the absurdity that the mind may have two ideas at once, which is with them impossible. Now I shall only contend that if the mind cannot have two ideas at the same time, it can never have any, since all the ideas we know of consist of more than one: and though the consciousness we have of attending to different objects at once, when we compare, judge, reason, will, &c., has been resolved into a deception of the mind in mistaking a rapid succession of objects for one general impression, yet it will hardly be pretended that we deceive ourselves in thinking we have any ideas at all. Mr. Horne Tooke, who is certainly one of the ablest commentators on the doctrines of that school, says that it is as absurd to talk of a complex idea as of a complex star, meaning that our ideas are as perfectly distinct from, and have as little to do with one another, as the stars that compose a constellation. Other writers, to avoid the seeming contradiction of supposing the mind to divide its attention between different objects, have suggested the instant of its passing from one to the other as the true point of comparison between them; or that the time when it had an idea of both together, was the time when it had an idea of neither. As it was evident that while the mind was entirely taken up with one idea, it could not have any knowledge of another which did not yet exist, or had passed away, and as both impressions cannot be supposed to co-exist in the same conscious understanding (for on this system there is no such faculty), this short,