nature, which God has fixed, or an instinct he has given to mankind;
the different members of a society or system of intelligent beings, sweetly united in a benevolent agreement of heart.
And here by the way, I would further observe, probably it is with regard to this image or resemblance, which secondary beauty has of true spiritual beauty, that God has so constituted nature, that the presenting of this inferior beauty, especially in those kinds of it which have the greatest resemblance of the primary beauty, as the harmony of sounds, and the beauties of nature, have a tendency to assist those whose hearts are under the influence of a truly virtuous temper, to dispose them to the exercises of divine love, and enliven in them a sense of spiritual beauty.
From what has been said we may see, that there are two sorts of agreement or consent of one thing to another. (1.) There is a cordial agreement; that consists in concord and union of mind and heart: which, if not attended (viewing things in general) with more discord than concord, is true virtue, and the original or primary beauty, which is the only true moral beauty. (2.) There is a natural union or agreement; which, though some image of the other, is entirely a distinct thing; the will, disposition, or affection of the heart having no concern in it, but consisting only in uniformity and consent of nature, form, quantity, &c. (as before described,) wherein lies an inferior secondary sort of beauty, which may in distinction from the other, be called natural beauty. This may be sufficient to let the reader know how I shall hereafter use the phrases cordial and natural agreement; and moral, spiritual, divine, and primary original beauty, and secondary or natural beauty. Concerning this latter, the inferior kind of beauty, the following things may be observed:
1. The cause why secondary beauty is grateful to men, is only a law of nature, which God has fixed, or an instinct he has given to mankind; and not their perception of the same thing which God is pleased to regard as the ground or rule by which he has established such a law of nature. This appears in two things.
(1.) That which God respects, as the ground of this law of nature, whereby things having a secondary beauty are made grateful to men, is their mutual agreement and proportion, in measure, form, &c. But, in many instances, persons that are gratified and affected with this beauty, do not reflect on that particular agreement and proportion, which, according to the law of nature, is the ground and rule of beauty in the case, yea, are ignorant of it. Thus, a man may be pleased with the harmony of the notes in a tune, and yet know nothing of that proportion or adjustment of the notes, which, by the law of nature, is the ground of the melody. He knows not, that the vibrations in one note regularly coincide with the vibrations in another; that the vibrations of a note coincide in time with two vibrations of its octave; and that two vibrations of a note coincide with three of its fifth, &c.—Yea, he may not know, that there are vibrations of the air in the case, or any corresponding motions in the organs of hearing, in the auditory nerve, or animal spirits.—So a man may be affected and pleased with a beautiful proportion of the features in a face, and yet not know what that proportion is, or in what measures, quantities, and distances it consists. In this, therefore, a sensation of secondary beauty differs from a sensation of primary and spiritual beauty, consisting in a spiritual union and agreement. What makes the latter grateful, is perceiving the union itself. It is the immediate view of that wherein the beauty fundamentally lies, that is pleasing to the virtuous mind.
(2.) God, in establishing such a law—that mutual natural agreement of different things, in form, quantity, &c. should appear beautiful or grateful to men—seems to have had regard to the resemblance there is in such a natural agreement, to that spiritual, cordial agreement, wherein original beauty consists. But it is not any reflection upon, or perception of, such a resemblance, that is the reason why such a form or state of objects appear beautiful to men: but their sensation of pleasure, on a view of this secondary beauty, is immediately owing to the law God has established, or the instinct he has given.