For which reason, in the next section, I shall consider the effects of custom in the figure of animals; and afterwards the idea of fitness: since if proportion does not operate by a natural power attending some measures, it must be either by custom, or the idea of utility; there is no other way.
SECTION V.
PROPORTION FURTHER CONSIDERED.
If I am not mistaken, a great deal of the prejudice in favor of proportion has arisen, not so much from the observation of any certain measures found in beautiful bodies, as from a wrong idea of the relation which deformity bears to beauty, to which it has been considered as the opposite; on this principle it was concluded that where the causes of deformity were removed, beauty must naturally and necessarily be introduced.

This I believe is a mistake.

For _deformity_ is opposed not to beauty, but to the _complete common form_.

If one of the legs of a man be found shorter than the other, the man is deformed; because there is something wanting to complete the whole idea we form of a man; and this has the same effect in natural faults, as maiming and mutilation produce from accidents.

So if the back be humped, the man is deformed; because his back has an unusual figure, and what carries with it the idea of some disease or misfortune; So if a man's neck be considerably longer or shorter than usual, we say he is deformed in that part, because men are not commonly made in that manner.