This principle also recommends modesty in dress, to keep up our expectations, and not suffer them to be too soon gratified. Therefore the body and limbs should all be cover'd, and little more than certain hints be given of them thro' the cloathing.
The face indeed will bear a constant view, yet always entertain and keep our curiosity awake, without the assistance either of a mask, or veil; because vast variety of changing circumstances keeps the eye and the mind in constant play, in following the numberless turns of expression it is capable of. How soon does a face that wants expression grow insipid, tho' it be ever so pretty?—The rest of the body, not having these advantages in common with the face, would soon satiate the eye, were it to be as constantly exposed, nor would it have more effect than a marble statue. But when it is artfully cloath'd and decorated, the mind at every turn resumes its imaginary pursuits concerning it. Thus, if I may be allow'd a simile, the angler chooses not to see the fish he angles for, until it is fairly caught.
[CHAPTER VII.]
Of Lines.
It may be remember'd that in the introduction, the reader is desired to consider the surfaces of objects as so many shells of lines, closely connected together, which idea of them it will now be proper to call to mind, for the better comprehending not only this, but all the following chapters on composition.
The constant use made of lines by mathematicians, as well as painters, in describing things upon paper, hath establish'd a conception of them, as if actually existing on the real forms themselves. This likewise we suppose, and shall set out with saying in general—That the straight line, and the circular line, together with their different combinations, and variations, &c. bound, and circumscribe all visible objects whatsoever, thereby producing such endless variety of forms, as lays us under the necessity of dividing, and distinguishing them into general classes; leaving the intervening mixtures of appearances to the reader's own farther observation.
First, [Fig. 23 T p. I] objects composed of straight lines only, as the cube, or of circular lines, as the sphere, or of both together, as cylinders and cones, &c.
