We now proceed to the latter clause of our general proposition. And here it may be asked, on what ground we assume one intuitive universal Principle as the true source of all those emotions which have just been discussed. To this we reply, On the ground of their common agreement. As we shall here use the words effect and emotion as convertible terms, we wish it to be understood, that, when we apply the epithet common or same to effect, we do so only in relation to kind, and for the sake of brevity, instead of saying the same class of effects; implying also in the word kind the existence of many degrees, but no other difference. For instance, if a beautiful flower and a noble act shall be found to excite a kindred emotion, however slight from the one or deep from the other, they come in effect under the same category. And this we are forced to admit, however heterogeneous, since a common ground is necessarily predicated of a common result. How else, for instance, can we account for a scene in nature, a bird, an animal, a human form, affecting us each in a similar way? There is certainly no similitude in the objects that compose a landscape, and the form of an animal and man; they have no resemblance either in shape, or texture, or color, in roughness, smoothness, or any other known quality; while their several effects are so near akin, that we do not stop to measure even the wide degrees by which they are marked, but class them in a breath by some common term. It is very plain that this singular property of assimilating to one what is so widely unlike cannot proceed from any similar conformation, or quality, or attribute of mere being, that is, of any thing essential to distinctive existence. There must needs, then, be some common ground for their common effect. For if they agree not in themselves one with the other, it follows of necessity that the ground of their agreement must be in relation to something within our own minds, since only there is this common effect known as a fact.

We are now brought to the important question, Where and what is this reconciling ground? Certainly not in sensation, for that could only reflect their distinctive differences. Neither can it be in the reflective faculties, since the effect in question, being co-instantaneous, is wholly independent of any process of reasoning; for we do not feel it because we understand, but only because we are conscious of its presence. Nay, it is because we neither do nor can understand it, being therefore a matter aloof from all the powers of reasoning, that its character is such as has been asserted, and, as such, universal.

Where, then, shall we search for this mysterious ground but in the mind, since only there, as before observed, is this common effect known as a fact? and where in the mind but in some inherent Principle, which is both intuitive and universal, since, in a greater or less degree, all men feel it without knowing why?

But since an inward Principle can, of necessity, have only a potential existence, until called into action by some outward object, it is also clear that any similar effect, which shall then be recognized through it, from any number of differing and distinct objects, can only arise from some mutual relation between a something in the objects and in the Principle supposed, as their joint result and proper product.

And, since it would appear that we cannot avoid the admission of some such Principle, having a reciprocal relation to certain outward objects, to account for these kindred emotions from so many distinct and heterogeneous sources, it remains only that we give it a name; which has already been anticipated in the term Harmony.

The next question here is, In what consists this peculiar relation? We have seen that it cannot be in any thing that is essential to any condition of mere being or existence; it must therefore consist in some undiscoverable condition indifferently applicable to the Physical, Intellectual, and Moral, yet only applicable in each to certain kinds.

And this is all that we do or can know of it. But of this we may be as certain as that we live and breathe.

It is true that, for particular purposes, we may analyze certain combinations of sounds and colors and forms, so as to ascertain their relative quantities or collocation; and these facts (of which we shall hereafter have occasion to speak) may be of importance both in Art and Science. Still, when thus obtained, they will be no more than mere facts, on which we can predicate nothing but that, when they are imitated,--that is, when similar combinations of quantities, &c., are repeated in a work of art,--they will produce the same effect. But why they should is a mystery which the reflective faculties do not solve; and never can, because it refers to a living Power that is above the understanding. In the human figure, for instance, we can give no reason why eight heads to the stature please us better than six, or why three or twelve heads seem to us monstrous. If we say, in the latter case, because the head of the one is too small and of the other too large, we give no reason; we only state the fact of their disagreeable effect on us. And, if we make the proportion of eight heads our rule, it is because of the fact of its being more pleasing to us than any other; and, from the same feeling, we prefer those statures which approach it the nearest. Suppose we analyze a certain combination of sounds and colors, so as to ascertain the exact relative quantities of the one and the collocation of the other, and then compare them. What possible resemblance can the understanding perceive between these sounds and colors? And yet a something within us responds to both in a similar emotion. And so with a thousand things, nay, with myriads of objects that have no other affinity but with that mysterious harmony which began with our being, which slept with our infancy, and which their presence only seems to have awakened. If we cannot go back to our own childhood, we may see its illustration in those about us who are now emerging into that unsophisticated state. Look at them in the fields, among the birds and flowers; their happy faces speak the harmony within them: the divine instrument, which these have touched, gives them a joy which, perhaps, only childhood in its first fresh consciousness can know. Yet what do they understand of musical quantities, or of the theory of colors?

And so with respect to Truth and Goodness; whose preëxisting Ideas, being in the living constituents of an immortal spirit, need but the slightest breath of some outward condition of the true and good,--a simple problem, or a kind act,--to awake them, as it were, from their unconscious sleep, and start them for eternity.

We may venture to assert, that no philosopher, however ingenious, could communicate to a child the abstract idea of Right, had the latter nothing beyond or above the understanding. He might, indeed, be taught, like the inferior animals,--a dog, for instance,--that, if he took certain forbidden things, he would be punished, and thus do right through fear. Still he would desire the forbidden thing, though belonging to another; nor could he conceive why he should not appropriate to himself, and thus allay his appetite, what was held by another, could he do so undetected; nor attain to any higher notion of right than that of the strongest. But the child has something higher than the mere power of apprehending consequences. The simplest exposition, whether of right or wrong, even by an ignorant nurse, is instantly responded to by something within him, which, thus awakened, becomes to him a living voice ever after; and the good and the true must thenceforth answer its call, even though succeeding years would fain overlay them with the suffocating crowds of evil and falsehood.