sensations the chief
are double, to preserve to one side what the other might happen to
be defective in by any accident. These two organs of the same
sensation are symmetrically placed either on the forepart or on the
sides, that man may use them with more ease to the right or to the
left or right against him--that is to say, towards the places his
joints direct his steps and all his actions. Besides, the
flexibility of the neck makes all those organs turn in an instant
which way soever he pleases. All the hinder part of the head, which
is the least able to defend itself, is therefore the thickest. It
is adorned with hair which at the same time serves to fortify the
head against the injuries of the air; and, on the other hand, the
hair likewise adorns the fore part of the head and renders the face
more graceful. The face is the fore part of the head, wherein the
principal sensations meet and centre with an order and proportion
that render it very beautiful unless some accident or other happen
to alter and impair so regular a piece of work. The two eyes are
equal, being placed about the middle, on the two sides of the head,
that they may, without trouble, discover afar off both on the right
and left all strange objects, and that they may commodiously watch
for the safety of all the parts of the body. The exact symmetry
with which they are placed is the ornament of the face; and He that
made them has kindled in them I know not what celestial flame, the
like of which all the rest of nature does not afford. These eyes
are a sort of looking-glasses, wherein all the objects of the whole
world are painted by turns and without confusion in the bottom of
the retina that the thinking part of man may see them in those
looking-glasses. But though we perceive all objects by a double
organ, yet we never see the objects double, because the two nerves
that are subservient to sight in our eyes are but two branches that
unite in one pipe, as the two glasses of a pair of spectacles unite
in the upper part that joins them together. The two eyes are
adorned with two equal eyebrows, and, that they may open and close,
they are wrapped up with lids edged with hair that defend so
delicate a part.

SECT. XXXIX. Of the Forehead and Other Parts of the Face.

The forehead gives majesty and gracefulness to all the face, and
serves to heighten all its features. Were it not for the nose,
which is placed in the middle, the whole fa