Page:Essays on the Principles of Human Action (1835).djvu/178

it should be made up of the confused, imperfect, and undisguishable impressions of several different objects of the same kind. Now it appears to me the easiest thing in the world to shew that this sensible image of a particular house, into which the general is to be resolved for greater clearness, is itself but a confused and vague notion, or numberless inconsistencies packed together; not one precise individual thing, or any number of things, distinctly perceived. For I would ask of any one who thinks his senses furnish him with these infallible and perfect conceptions of things, free from all contradiction and perplexity, whether he has a precise knowledge of all the circumstance of the object prescribed to him. For instance, is the knowledge which he has that the house before him is larger than another near it, in consequence of his intentively considering all the bricks of which it is composed, or can he tell that it contains a greater number of windows than another, without distinctly counting them? Let us suppose, however, that he does. But this will not be enough unless he has also a distinct perception of the numbers and the size of the panes of glass in each window, or of any mark, stain, or dirt in each separate brick? Otherwise his idea of each of these particulars will still be general, and his most substantial knowledge built on shadows; that is composed of a number of parts of the parts of which he has no knowledge. If objects were what mankind in general suppose them, single things, we could have no notion of them but what was particular, for by leaving out any thing we should leave out the whole object, which is but one thing. We may also be said to have a particular knowledge of things in proportion to the number of parts we distinguish in them. But the real foundation of all our knowledge, is and must be general, that is, a mere confused impression or effect of