"This too should be observed, that such things as are a consequence of a well-constituted nature have also something of the graceful and attractive. For instance, when bread is baked, some parts are split at the surface, and these parts which thus open, and have a certain fashion contrary to the purpose of the baker's art, are beautiful in a manner, and in a peculiar way excite a desire for eating.
So, too, figs, when they are the ripest, gape open; and in the ripe olives the very cracks add a peculiar beauty to the fruit. And the drooping of the ears of corn, and the wrinkling of the brow of the lion, and the foam which flows from the mouth of the wild boar, are not beautiful, if we look at them in isolation, but because they are a consequence of things that are natural, they add a new beauty and a peculiar attraction, and they excite our mind to a certain wonder, because we see in them a natural process that we would not have perceived otherwise."
M.A. 3,2.
