And that, notwithstanding the many distortions and diseases which this practice was known to occasion, custom had rendered it agreeable among some of the most civilized nations which, perhaps, the world ever beheld. I cannot, however, be induced to believe that our sense even of external beauty is founded altogether on custom. The utility of any form, its fitness for the useful purposes for which it was intended, evidently recommends it, and renders it agreeable to us, independent of custom. Certain colours are more agreeable than others, and give more delight to the eye the first time it ever beholds them. A smooth surface is more agreeable than a rough one.
Variety is more pleasing than a tedious undiversified uniformity.
Connected variety, in which each new appearance seems to be introduced by what went before it, and in which all the adjoining parts seem to have some natural relation to one another, is more agreeable than a disjointed and disorderly assemblage of unconnected objects.