Page:Essays on the Principles of Human Action (1835).djvu/110

 the other; and we should be little disposed to believe any one who told us seriously that in reality we had before seen the one man's nose upon the other's face, and that this old impression or very identical object brought along with it the other ideas with which it had been formerly associated. This account would be sufficiently contrary to common sense and feeling, and I hope to shew that it has as little connection with any true subtlety of thinking. No metaphysician will I think be disposed to controvert this, who takes the trouble accurately to compare the meaning of the explanation with the terms and necessary import of the law of association. For let an impression which I received yesterday be in every possible respect the same with the one which I received to-day, still the one impression is not the other; they are two distinct impressions existing at different times, and by the supposition associated with very different circumstances. The one from having been co-existent with certain circumstances has a power by the law of association of exciting the recollection of those circumstances whenever it is itself recollected : the other has the same power over that particular combination of circumstances with which it was associated, merely because they were so impressed together on the mind at the same moment of time. To say therefore that a particular quality of an object has a power of exciting the ideas of several other qualities of another object, of which it never made a part, is on the principle of association, a contradiction in terms. Its being essentially or comparatively the same with another quality which did actually make part of such an object no more proves the consequences which fairly result from the principle of association than it would follow from my looking at the same object at which another has been looking, that I must forthwith be impressed with all the ideas, feel-