A dwelling-house void of all regularity, is however beautiful in the view of convenience; and the want of form or symmetry in a tree, will not prevent its appearing beautiful, if it be known to produce good fruit. When these two beauties concur in any object, it appears delightful. Every member of the human body possesses both in a high degree. The slender make of a horse destined for running, pleases every taste; partly from symmetry, and partly from utility. The beauty of utility, being proportioned accurately to the degree of utility, requires no illustration. But intrinsic beauty, so complex as I have said, cannot be handled distinctly without being analized into its constituent parts. If a tree be beautiful by means of its colour, its figure, its size, its motion, it is in reality possessed of so many different beauties, which ought to be examined separately, in order to have a clear notion of the whole. The beauty of colour is too familiar to need explanation. The beauty of figure requires an accurate discussion, for in it many circumstances are involved. When any portion of matter is viewed as a whole, the beauty of its figure arises from regularity and simplicity. Viewing the parts with relation to each other, uniformity, proportion, and order, contribute to its beauty. The beauty of motion deserves a chapter by itself; and another chapter is destined for grandeur, being distinguishable from beauty in a strict sense. For the definitions of regularity, uniformity, proportion, and order, if thought necessary, I remit my reader to the appendix at the end of the book. Upon simplicity I must make a few cursory observations, such as may be of use in examining the beauty of single objects.