Of the efficient cause of the sublime and beautiful.

When I say, I intend to inquire into the efficient cause of sublimity and beauty, I would not be understood to say, that I can come to the ultimate cause. I do not pretend that I shall ever be able to explain why certain affections of the body produce such a distinct emotion of mind, and no other; or why the body is at all affected by the mind, or the mind by the body. A little thought will show this to be impossible. But I conceive, if we can discover what affections of the mind produce certain emotions of the body; and what distinct feelings and qualities of body shall produce certain determinate passions in the mind, and no others, I fancy a great deal will be done; something not unuseful towards a distinct knowledge of our passions, so far at least as we have them at present under our consideration. This is all, I believe, we can do. If we could advance a step farther, difficulties would still remain, as we should be still equally distant from the first cause. When Newton first discovered the property of attraction, and settled its laws, he found it served very well to explain several of the most remarkable phenomena in nature; but yet, with reference to the general system of things, he could consider attraction but as an effect, whose cause at that time he did not attempt to trac............